View source for Team Fortress 2 Item Attribute Indexes

This is a list of the item attribute indexes in TF2.  These are useful for applying to weapons to change how they work.

This was created as a companion list for the [[Team Fortress 2 Item Definition Indexes|Item Definition Indexes]] list, which contains the indexes of the weapons themselves.

This list is divided into Attribute Types, Positive Attributes, Negative Attributes, and Neutral Attributes.

Normally, you'll want to use this with [https://forums.alliedmods.net/forumdisplay.php?f=146 TF2Items].

'''Attributes that have no weapons listed may not work.'''  Matched attributes where the opposite 

== Attribute Types ==
{| class="wikitable"
|-
! Type
! Description
! Example
|-
| percentage
| Expressed as a decimal.  100% is 1.0, 90% is 0.9. Sometimes boolean attributes are represented as percentages.
| Natascha: "damage penalty" "0.75" does 75% of normal damage.
|-
| inverted percentage
| Expressed as a decimal.  Value is a percentage, but the percentage is subtracted from 100% when displayed to the user.
| Übersaw: "fire rate penalty" "1.2" sets the fire rate to 80% but displays that the weapon fires 20% slower.
|-
| additive
| Value is added to the default value.  Value can be positive or negative.  Boolean values are normally expressed as additive.
| Blutsauger: "heal on hit for rapidfire" "3.0" makes a Medic heal 3hp whenever damage is dealt with it.
|-
| additive percentage
| Value is a percentage added to the default value.  Value can be positive or negative.
| Übersaw: "add user charge on hit" "0.25" makes a Medic gain 25% uber whenever he hit someone with it.
|-
| or
| Used on only one attribute (see example) for a boolean value.  Usually, additive is used instead.  
| Axtinguisher: "crit vs burning players" "1.0"
|}

<!-- Todo: add Hidden? column -->
== Attributes ==
{| class="wikitable"
|-
! Index
! Name
! Type
! Weapons that use this attribute
! Attribute text
! Notes
|-
! 1
| damage penalty
| percentage
| Natascha, Force-a-Nature, Ambassador, Tribalman's Shiv, L'Etranger, Rocket Jumper, Gloves of Running Urgently, Stickybomb Jumper, Jag, Sharpened Volcano Fragment, Sun-on-a-Stick, Fan O'War, Overdose, Family Business, Eviction Notice, Cow Mangler 5000, Disciplinary Action, Diamondback, Phlogistinator, Wrap Assassin
| {{Tf2-item-attribute|negative|%s1% damage penalty}}
|
|-
! 2
| damage bonus
| percentage
| Backburner, Direct Hit, Scotsman's Skullcutter, Loch-n-Load, Warrior's Spirit, Brass Beast, Back Scratcher, Winger, Enforcer
| {{Tf2-item-attribute|positive|+%s1% damage bonus}}
|
|-
! 3
| clip size penalty
| percentage
| Force-a-Nature, Frontier Justice, Black Box, Loch-n-Load, Liberty Launcher, Reserve Shooter, Soda Popper, Winger
| {{Tf2-item-attribute|negative|%s1% clip size}}
|
|-
! 4
| clip size bonus
| percentage
| Family Business
| {{Tf2-item-attribute|positive|+%s1% clip size}} 
|
|-
! 5
| fire rate penalty
| inverted percentage
| Übersaw, Killing Gloves of Boxing, Ambassador, Tomislav, Atomizer
| {{Tf2-item-attribute|negative|%s1% slower firing speed}}
|
|-
! 6
| fire rate bonus
| inverted percentage
| Force-a-Nature, Scottish Resistance, Eviction Notice, Soda Popper
| {{Tf2-item-attribute|positive|+%s1% faster firing speed}} 
|
|-
! 7
| heal rate penalty
| percentage
| 
| {{Tf2-item-attribute|negative|%s1% heal rate}}
|
|-
! 8
| heal rate bonus
| percentage
| Quick-Fix
| {{Tf2-item-attribute|positive|+%s1% heal rate}} 
| Medic only.
|-
! 9
| ubercharge rate penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% ÜberCharge rate}}
|
|-
! 10
| ubercharge rate bonus
| percentage
| Kritzkrieg, Quick-Fix
| {{Tf2-item-attribute|positive|+%s1% ÜberCharge rate}} 
| Medic only.
|-
! 11
| overheal bonus
| percentage
|
| {{Tf2-item-attribute|positive|%s1% more overheal}} 
| Medic only.
|-
! 12
| overheal decay penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% shorter overheal time}}
|
|-
! 13
| overheal decay bonus
| inverted percentage
|
| {{Tf2-item-attribute|positive|+%s1% longer overheal time}} 
| Medic only.
|-
! 14
| overheal decay disabled
| percentage
|
| {{Tf2-item-attribute|positive|Overheal bonus doesn't decay}} 
| Medic only.
|-
! 15
| crit mod disabled
| percentage (should be additive)
| Eyelander, Frontier Justice, Gunslinger, Southern Hospitality, Sydney Sleeper, Stickybomb Jumper, Horseless Headless Horsemann's Headtaker, Ullapool Caber, Claidheamh Mòr, Persian Persuader, Market Gardener, Cow Mangler 5000, Soda Popper, Nessie's Nine Iron, Diamondback, Short Circuit, Phlogistinator, Manmelter
| {{Tf2-item-attribute|negative|No random critical hits}}
| Attribute 28 is the hidden version of this attribute.  Weapons with this attribute can still be critboosted by other means.  Use attribute 288 for weapons that can never be crit-boosted.
|-
! 16
| heal on hit for rapidfire
| additive
| Blutsauger, Black Box
| {{Tf2-item-attribute|positive|On Hit: +%s1 health}} 
|
|-
! 17
| add uber charge on hit
| additive percentage
| Übersaw
| {{Tf2-item-attribute|positive|On Hit: %s1% ÜberCharge added}} 
| Medic only.
|-
! 18
| medigun charge is crit boost
| additive
| Kritzkrieg
| {{Tf2-item-attribute|neutral|ÜberCharge grants 100% critical chance}} 
| Mediguns only.
|-
! 19
| tmp dmgbuff on hit
| additive percentage
|
| {{Tf2-item-attribute|positive|On Hit: +%s1% damage bonus}} 
|
|-
! 20
| crit vs burning players
| or
| Axtinguisher, Sun-on-a-Stick, Postal Pummeler
| {{Tf2-item-attribute|positive|100% critical hit vs burning players}} 
|
|-
! 21
| dmg penalty vs nonburning
| percentage
| Axtinguisher, Postal Pummeler
| {{Tf2-item-attribute|negative|%s1% damage vs non-burning players}}
|
|-
! 22
| no crit vs nonburning
| additive
| Axtinguisher, Postal Pummeler
| {{Tf2-item-attribute|negative|No critical hits vs non-burning players}}
|
|-
! 23
| mod flamethrower push
| additive
|
| {{Tf2-item-attribute|negative|No compression blast}}
| Obsolete attribute. Formerly used on Backburner.  Use attribute 356 instead.
|-
! 24
| mod flamethrower back crit
| additive
| Backburner
| {{Tf2-item-attribute|positive|100% critical hits from behind}} 
| Pyro only.
|-
! 25
| hidden secondary max ammo penalty
| unknown, assumed percentage
| Flare Gun, Detonator
|
| Alter the max ammo for a Secondary weapon.  Can be positive or negative. Attribute 37 is the Primary weapon version of this attribute.
|-
! 26
| max health additive bonus
| additive
| Gunslinger, Darwin's Danger Shield, Ali Baba's Wee Booties, Bootlegger, Special Delivery Set bonus
| {{Tf2-item-attribute|positive|+%s1 max health on wearer}} 
| Formerly on Backburner, but was removed in mid-2008. Opposite of attribute 125.
|-
! 27
| alt-fire disabled
| additive
|
|
| Never implemented.  Replaced by attribute 23.
|-
! 28
| crit mod disabled hidden
| percentage (should be additive)
| Backburner
| {{Tf2-item-attribute|negative|No random critical hits}}
| Attribute 15 is the non-hidden version of this attribute.
|-
! 29
| alt-fire is vampire
| additive
|
|
|
|-
! 30
| fists have radial buff
| additive
|
| {{Tf2-item-attribute|neutral|On Kill: +50 health on nearby teammates. On Kill: +10% Crit Chance on nearby teammates}} 
| Heavy only?
|-
! 31
| critboost on kill
| additive
| Killing Gloves of Boxing (K.G.B.)
| {{Tf2-item-attribute|positive|On Kill: %s1 seconds of 100% critical chance}} 
|
|-
! 32
| slow enemy on hit
| additive
| Natascha
| {{Tf2-item-attribute|positive|On Hit: %s1% chance to slow target}} 
|
|-
! 33
| set cloak is feign death
| additive
| Dead Ringer
| {{Tf2-item-attribute|neutral|Cloak Type: Feign Death}}
| Only usable on tf_weapon_invis.
|-
! 34
| mult cloak meter consume rate
| percentage
| Dead Ringer
| {{Tf2-item-attribute|negative|+%s1% cloak drain rate}}
|
|-
! 35
| mult cloak meter regen rate
| percentage
| Cloak & Dagger
| {{Tf2-item-attribute|positive|+%s1% cloak regen rate}} 
|
|-
! 36
| spread penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% less accurate}}
| Opposite of attribute 106.
|-
! 37
| hidden primary max ammo bonus
| unknown, assumed percentage
| Huntsman
|
| Alter the max ammo for a primary weapon.  Can be positive or negative.  Attribute 25 is the Secondary weapon version of this attribute.
|-
! 38
| mod bat launches balls
| additive
| Sandman
| {{Tf2-item-attribute|positive|Alt-Fire: Launches a ball that stuns opponents}} 
| This is for stunballs only. For bleed ornaments, use attribute 346.
|-
! 39
| smg penalty vs nonstunned
| percentage
|
| {{Tf2-item-attribute|negative|%s1% damage vs non-stunned players}}
| Not implemented.
|-
! 40
| zoom speed mod disabled
| additive
|
| {{Tf2-item-attribute|positive|No move speed penalty from zoom}} 
| Not implemented.
|-
! 41
| sniper charge per sec
| percentage
| Sydney Sleeper
| {{Tf2-item-attribute|positive|+%s1% charge rate}} 
| Sniper only.
|-
! 42
| sniper no headshots
| additive
| Sydney Sleeper, Crusader's Crossbow
| {{Tf2-item-attribute|negative|No headshots}}
|
|-
! 43
| scattergun no reload single
| additive
| Force-a-Nature, Soda Popper
|
| Scatterguns only? Forces all rounds in a clip to be lost if reloaded when bullets are still in the clip.
|-
! 44
| scattergun has knockback
| additive
| Force-a-Nature
| {{Tf2-item-attribute|positive|Knockback on the target and shooter}} 
| Scatterguns only?
|-
! 45
| bullets per shot bonus
| percentage
| Force-a-Nature, Soda Popper
| {{Tf2-item-attribute|positive|+%s1% bullets per shot}} 
| Scatterguns and Shotguns only.
|-
! 46
| sniper zoom penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% zoom reduction}}
| Sniper rifle only.  May not be implemented.
|-
! 47
| sniper no charge
| additive
|
| {{Tf2-item-attribute|negative|No zoom or damage charge}}
| Not implemented.
|-
! 48
| set cloak is movement based
| additive
| Cloak and Dagger
| {{Tf2-item-attribute|neutral|Cloak Type: Motion Sensitive}}
| Also prevents cloak from being regenerated by ammo boxes and dropped weapons.
|-
! 49
| no double jump
| additive
|
| {{Tf2-item-attribute|negative|Disables double jump}}
| Formerly on Sandman.
|-
! 50
| absorb damage while cloaked
| percentage
|
| {{Tf2-item-attribute|positive|Absorbs %s1% damage while cloaked}} 
| Not implemented.  This is now implemented as part of attribute 33.
|-
! 51
| revolver use hit locations
| additive
| Ambassador
| {{Tf2-item-attribute|positive|Crits on headshot}} 
| Causes weapon to headshot if the head is hit. Not clear if it only applies to Revolvers.
|-
! 52
| backstab shield
| additive
| Razorback
| {{Tf2-item-attribute|positive|Blocks a single backstab attempt}} 
|
|-
! 53
| fire retardant
| additive
|
|
| Formerly used in TF2 Beta for the Fire Retardant Suit.  Use attribute 361 instead.
|-
! 54
| move speed penalty
| inverted percentage
| Scotsman's Skullcutter
| {{Tf2-item-attribute|negative|%s1% slower move speed on wearer}}
|
|-
! 55
| obsolete ammo penalty
| unknown, assumed percentage
|
|
| Use other ammo attributes instead.
|-
! 56
| jarate description
| percentage (should be additive)
| Jarate
| {{Tf2-item-attribute|neutral|Coated enemies take mini-crits<br>Also handy for putting out a fire}}
| Display only, the actual effect is built into tf_weapon_jar
|-
! 57
| health regen
| additive
| Medieval Medic Set Bonus
| {{Tf2-item-attribute|positive|+%s1 health regenerated per second on wearer}} 
| Opposite of attribute 129.
|-
! 58
| self dmg push force increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% self damage force}} 
| Soldier and Demoman only.
|-
! 59
| self dmg push force decreased
| percentage
|
| {{Tf2-item-attribute|negative|%s1% self damage force}} 
| Soldier and Demoman only.
|-
! 60
| dmg taken from fire reduced
| inverted percentage
| Chargin' Targe, Splendid Screen, Expert's Ordnance Set Bonus
| {{Tf2-item-attribute|positive|+%s1% fire damage resistance on wearer}} 
|
|-
! 61
| dmg taken from fire increased
| percentage
| Southern Hospitality, Bushwacka, Rocket Jumper
| {{Tf2-item-attribute|negative|%s1% fire damage vulnerability on wearer}} 
|
|-
! 62
| dmg taken from crit reduced
| inverted percentage
| Hibernative Bear Set Bonus
| {{Tf2-item-attribute|positive|+%s1% critical hit damage resistance on wearer}} 
| Not used by Battalion's Backup.
|-
! 63
| dmg taken from crit increased
| percentage
|
| {{Tf2-item-attribute|negative|%s1% critical hit damage vulnerability on wearer}} 
| Due to its nature, this attribute will never make it into the game.
|-
! 64
| dmg taken from blast reduced
| inverted percentage
| Chargin' Targe, Splendid Screen
| {{Tf2-item-attribute|positive|+%s1% explosive damage resistance on wearer}} 
|
|-
! 65
| dmg taken from blast increased
| percentage
| Rocket Jumper, Candy Cane
| {{Tf2-item-attribute|negative|%s1% explosive damage vulnerability on wearer}} 
| Formerly on Sticky Jumper.
|-
! 66
| dmg taken from bullets reduced
| inverted percentage
|
| {{Tf2-item-attribute|positive|+%s1% bullet damage resistance on wearer}} 
|
|-
! 67
| dmg taken from bullets increased
| percentage
| Pain Train, Rocket Jumper, Gas Jockey's Gear Set Penalty
| {{Tf2-item-attribute|negative|%s1% bullet damage vulnerability on wearer}} 
|
|-
! 68
| increase player capture value
| additive
| Pain Train
| {{Tf2-item-attribute|positive|+%s1 capture rate on wearer}} 
|
|-
! 69
| health from healers reduced
| percentage
| Back Scratcher
| {{Tf2-item-attribute|negative|%s1% health from healers on wearer}}
|
|-
! 70
| health from healers increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% health from healers on wearer}} 
|
|-
! 71
| weapon burn dmg increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% afterburn damage bonus}} 
| Pyro only.
|-
! 72
| weapon burn dmg reduced
| percentage
| Degreaser
| {{Tf2-item-attribute|negative|%s1% afterburn damage penalty}} 
| Pyro only.
|-
! 73
| weapon burn time increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% afterburn duration}} 
| Pyro only. Applies to afterburn.
|-
! 74
| weapon burn time reduced
| percentage
|
| {{Tf2-item-attribute|negative|%s1% afterburn duration}} 
| Pyro only. Applies to afterburn.
|-
! 75
| aiming movespeed increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% faster move speed while deployed}} 
|
|-
! 76
| maxammo primary increased
| percentage
| Rocket Jumper
| {{Tf2-item-attribute|positive|+%s1% max primary ammo on wearer}} 
| Hidden version is attribute 37.
|-
! 77
| maxammo primary reduced
| percentage
| Crusader's Crossbow
| {{Tf2-item-attribute|negative|%s1% max primary ammo on wearer}} 
| Hidden version is attribute 37.
|-
! 78
| maxammo secondary increased
| percentage
| Scottish Resistance, Stickybomb Jumper
| {{Tf2-item-attribute|positive|+%s1% max secondary ammo on wearer}} 
| Hidden version is attribute 25.
|-
! 79
| maxammo secondary reduced
| percentage
|
| {{Tf2-item-attribute|negative|%s1% max secondary ammo on wearer}}
| Hidden version is attribute 25.
|-
! 80
| maxammo metal increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% max metal on wearer}} 
| Engineer only.  May not be implemented.
|-
! 81
| maxammo metal reduced
| percentage
|
| {{Tf2-item-attribute|negative|%s1% max metal on wearer}} 
| Engineer only.  May not be implemented.
|-
! 82
| cloak consume rate increased
| percentage
|
| {{Tf2-item-attribute|negative|-%s1% cloak duration}} 
| Spy only. Use attribute 34 instead.
|-
! 83
| cloak consume rate decreased
| inverted percentage
|
| {{Tf2-item-attribute|positive|+%s1% cloak duration}} 
| Spy only. Use attribute 34 instead.
|-
! 84
| cloak regen rate increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% cloak regeneration rate}} 
| Spy only. Use attribute 35 instead.
|-
! 85
| cloak regen rate decreased
| percentage
|
| {{Tf2-item-attribute|negative|-%s1% cloak regeneration rate}} 
| Spy only. Use attribute 35 instead.
|-
! 86
| minigun spinup time increased
| percentage
| Natascha, Brass Beast
| {{Tf2-item-attribute|negative|%s1% slower spin up time}} 
| Minigun only.
|-
! 87
| minigun spinup time decreased
| inverted percentage
| Tomislav
| {{Tf2-item-attribute|positive|%s1% faster spin up time}} 
| Minigun only.
|-
! 88
| max pipebombs increased
| additive
| Scottish Resistance
| {{Tf2-item-attribute|positive|+%s1 max pipebombs out}} 
| Stickybomb Launcher only.
|-
! 89
| max pipebombs decreased
| additive
|
| {{Tf2-item-attribute|negative|%s1 max pipebombs out}} 
| Stickybomb Launcher only.
|-
! 90
| SRifle Charge rate increased
| percentage
|
| {{Tf2-item-attribute|positive|%s1% faster power charge}} 
| Sniper only. Use attribute 41 instead.
|-
! 91
| SRifle Charge rate decreased
| inverted percentage
|
| {{Tf2-item-attribute|positive|%s1% slower power charge}} 
| Sniper only. Use attribute 41 instead.
|-
! 92
| Construction rate increased
| percentage
| Jag
| {{Tf2-item-attribute|positive|%s1% faster construction rate}} 
| Engineer only. Only applies to melee hits.
|-
! 93
| Construction rate decreased
| inverted percentage
|
| {{Tf2-item-attribute|negative|%s1% slower construction rate}} 
| Engineer only. Only applies to melee hits.
|-
! 94
| Repair rate increased
| percentage
|
| {{Tf2-item-attribute|positive|%s1% faster repair rate}} 
| Engineer only.
|-
! 95
| Repair rate decreased
| inverted percentage
|
| {{Tf2-item-attribute|negative|%s1% slower repair rate}} 
| Engineer only.
|-
! 96
| Reload time increased
| percentage
| Cow Mangler 5000
| {{Tf2-item-attribute|negative|%s1% slower reload time}} 
| Hidden version is attribute 241.
|-
! 97
| Reload time decreased
| inverted percentage
| Soda Popper
| {{Tf2-item-attribute|positive|%s1% faster reload time}} 
|
|-
! 98
| selfdmg on hit for rapidfire
| additive
|
| {{Tf2-item-attribute|negative|On Hit: %s1% health}} 
| Negative version of attribute 16.
|-
! 99
| Blast radius increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% explosion radius}} 
| Soldier and Demoman only.
|-
! 100
| Blast radius decreased
| percentage
| Direct Hit
| {{Tf2-item-attribute|negative|%s1% explosion radius}} 
| Soldier and Demoman only.
|-
! 101
| Projectile range increased
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% projectile range}} 
|
|-
! 102
| Projectile range decreased
| percentage
|
| {{Tf2-item-attribute|negative|%s1% projectile range}} 
|
|-
! 103
| Projectile speed increased
| percentage
| Direct Hit, Loch-n-Load, Liberty Launcher, Manmelter
| {{Tf2-item-attribute|positive|+%s1% projectile speed}} 
|
|-
! 104
| Projectile speed decreased
| percentage
|
| {{Tf2-item-attribute|negative|%s1% projectile speed}} 
|
|-
! 105
| overheal penalty
| inverted percentage
|
| {{Tf2-item-attribute|negative|%s1% less max overheal}}
| Obsolete, Quick-Fix uses a different way of implementing this penalty.
|-
! 106
| weapon spread bonus
| percentage
|
| {{Tf2-item-attribute|positive|%s1% more accurate}} 
| Opposite of attribute 36.
|-
! 107
| move speed bonus
| percentage
| Gloves of Running Urgently (G.R.U.), Gas Jockey's Gear Set Bonus
| {{Tf2-item-attribute|positive|+%s1% faster move speed on wearer}} 
|
|-
! 108
| health from packs increased
| percentage
| Back Scratcher
| {{Tf2-item-attribute|positive|+%s1% health from packs on wearer}} 
|
|-
! 109
| health from packs decreased
| percentage
|
| {{Tf2-item-attribute|negative|%s1% health from packs on wearer}} 
|
|-
! 110
| heal on hit for slowfire
| additive
|
| {{Tf2-item-attribute|positive|On Hit: +%s1 health}} 
| Not used, use attribute 16 instead.
|-
! 111
| selfdmg on his for slowfire
| additive
|
| {{Tf2-item-attribute|negative|On Hit: %s1 health}} 
| Not used.
|-
! 112
| ammo regen
| additive percentage
|
| {{Tf2-item-attribute|positive|+%s1% ammo regenerated every 5 seconds on wearer}} 
|
|-
! 113
| metal regen
| additive
|
| {{Tf2-item-attribute|positive|+%s1 metal regenerated every 5 seconds on wearer}} 
| Engineer only.
|-
! 114
| mod mini-crit airborne
| additive
| Direct Hit
| {{Tf2-item-attribute|positive|Mini-crits targets launched airborne by explosions}} 
| Only for enemies knocked into the air by explosive damage.  For all airborne targets, use attribute 265.
|-
! 115
| mod shovel damage boost
| additive
| Equalizer
| {{Tf2-item-attribute|positive|Damage and move speed increase<br>as the user becomes injured<br>Blocks healing when in use}} 
|
|-
! 116
| mod soldier buff type
| unknown, assumed additive
| Buff Banner, Battalion's Backup, Concheror, Phlogistinator
|
| 1 is mini-crits for yourself and allies, 2 is defense buff for yourself and allies, 3 is healing for yourself and allies, 4 is unknown, 5 is critical hits for yourself.
|-
! 117
| dmg falloff increased
| inverted percentage
|
|
| Likely not implemented.
|-
! 118
| dmg falloff decreased
| percentage
|
| {{Tf2-item-attribute|positive|%s1% splash damage fall off}} 
| Likely not implemented.
|-
! 119
| sticky detonate mode
| additive
| Scottish Resistance
| {{Tf2-item-attribute|positive|Detonates stickybombs near the crosshair and directly under your feet}} 
| 1 is Scottish Resistance mode.  Presumably 0 is standard mode.
|-
! 120
| sticky arm time penalty
| additive
| Scottish Resistance
| {{Tf2-item-attribute|negative|%s1 sec slower bomb arm time}} 
| Stickybomb Launchers only
|-
! 121
| stickies detonate stickies
| additive
| Scottish Resistance
| {{Tf2-item-attribute|positive|Able to destroy enemy stickybombs}} 
| Stickybomb Launchers only
|-
! 122
| mod demo buff type
| unknown, assumed additive
|
|
| 
|-
! 123
| speed boost when active
| percentage
|
| {{Tf2-item-attribute|positive|%s1% speed boost while active weapon}} 
| Deprecated in favor of using attributes 107 and 128 together.
|-
! 124
| mod wrench builds minisentry
| additive
| Gunslinger
| {{Tf2-item-attribute|negative|Replaces the Sentry with a fast building Mini-Sentry}} 
| Listed as negative, but should actually be neutral.
|-
! 125
| max health additive penalty
| additive
| Sandman, Eyelander, Vita-Saw, Horseless Headless Horsemann's Headtaker, Warrior's Spirit, Claidheamh Mòr, Conniver's Kunai, Big Earner, Nessie's Nine Iron
| {{Tf2-item-attribute|negative|%s1 max health on wearer}}
| Opposite of attribute 26.
|-
! 126
| sticky arm time bonus
| additive
|
| {{Tf2-item-attribute|positive|%s1 sec faster bomb arm time}} 
| Stickybomb Launchers only
|-
! 127
| sticky air burst mode
| additive
| Loch-n-Load
| {{Tf2-item-attribute|negative|Launched bombs shatter on surfaces}}
| Grenade Launchers only.
|-
! 128
| provide on active
| additive
| Gloves of Running Urgently (G.R.U.)
| {{Tf2-item-attribute|neutral|When weapon is active:}}
| Modifies on-player attributes to only be active when this weapon is out.
|-
! 129
| health drain
| additive
| Blutsauger
| {{Tf2-item-attribute|negative|%s1 health drained per second on wearer}}
| Opposite of attribute 57.
|-
! 130
| medic regen bonus
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% natural regen rate}} 
|
|-
! 131
| medic regen penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% natural regen rate}} 
|
|-
! 132
| community description
| percentage (should be additive)
| Community Quality weapons
| {{Tf2-item-attribute|neutral|Given to valuable Community Contributors}}
| Controlled by item server
|-
! 133
| soldier model index
| additive
| Service Medal
| {{Tf2-item-attribute|neutral|Medal no. %s1}}
| Controlled by item server
|-
! 134
| attach particle effect
| particle index
| Unusual hats
| {{Tf2-item-attribute|neutral|Effect: %s1}}
| Controlled by item server
|-
! 135
| rocket jump damage reduction
| percentage
| Gunboats
| {{Tf2-item-attribute|positive|s1% blast damage from rocket jumps}} 
|
|-
! 136
| mod sentry killed revenge
| additive
| Frontier Justice
| {{Tf2-item-attribute|positive|When your sentry is destroyed you gain revenge crits for every sentry kill}} 
| Engineer only.  Crits are granted when sentry is destroyed (2 per kill, 1 per assist).  Maximum 35 crits.
|-
! 137
| dmg bonus vs buildings
| percentage
| Homewrecker, Maul
| {{Tf2-item-attribute|positive|%s1% damage vs buildings}}
|
|-
! 138
| dmg penalty vs players
| percentage
| Homewrecker, Maul
| {{Tf2-item-attribute|negative|%s1% damage vs players}}
|
|-
! 139
| lunchbox adds maxhealth bonus
| additive
| Dalokohs Bar, Fishcake
| {{Tf2-item-attribute|positive|Adds +50 max health for 30 seconds}} 
| Only applies to lunchbox items
|-
! 140
| hidden maxhealth non buffed
| additive
|
| {{Tf2-item-attribute|positive|+%s1 max health on wearer}} 
| This is the hidden version of attribute 26.
|-
! 141
| selfmade description
| percentage (should be additive)
| Self-Made quality items
| {{Tf2-item-attribute|neutral|I made this!}}
| Controlled by item server
|-
! 142
| set item tint RGB
| additive
| Painted items
| {{Tf2-item-attribute|neutral|Item tint color code: %s1}}
| Controlled by item server.  RED paint color for dual-color paints.
|-
! 143
| custom employee number
| date
| Employee badges
| {{Tf2-item-attribute|neutral|Hire Date: %s1}}
| Controlled by item server
|-
! 144
| lunchbox adds minicrits
| additive
| Übersaw, Natascha, Crit-a-Cola, Vita-Saw, Your Eternal Reward, Gloves of Running Urgently (G.R.U.), Amputator, Buffalo Steak Sandvich, Detonator, Conniver's Kunai, Quick-Fix, Overdose, Wanga Prick, Phlogistinator, Manmelter
|
| Hidden generic attribute that sets a weapon's mode.  Named after the Crit-a-Cola, although it has been coopted by other weapons since.
|-
! 145
| taunt is highfive
| unknown, assumed additive
|
|
| Not implemented, instead this was implemented as a separate Action item.
|-
! 146
| damage applies to sappers
| additive
| Homewrecker, Maul
| {{Tf2-item-attribute|positive|Damage removes Sappers}} 
| Implicitly on all Engineer melee weapons.
|-
! 147
| Wrench index
| additive
| Golden Wrench
| {{Tf2-item-attribute|neutral|Wrench no. %s1}}
| Controlled by item server
|-
! 148
| building cost reduction
| additive
|
| {{Tf2-item-attribute|positive|%s1 metal reduction in building cost}} 
| Engineer only.
|-
! 149
| bleeding duration
| additive
| Southern Hospitality, Tribalman's Shiv, Boston Basher, Three-Rune Blade
| {{Tf2-item-attribute|positive|On Hit: Bleed for %s1 seconds}} 
|
|-
! 150
| turn to gold
| additive
| Golden Wrench, Saxxy
| {{Tf2-item-attribute|positive|Imbued with an ancient power}} 
|
|-
! 151
| DEPRECATED socketed item definition id DEPRECATED
| additive
|
|
| Not used, although it could have been repurposed for Strange Parts.
|-
! 152
| custom texture lo
| unknown, assumed additive
|
|
| It's unclear what exactly this is used for.
|-
! 153
| cannot trade
| additive
| Some older items have this, as well as all items owned by F2P accounts.
| {{Tf2-item-attribute|positive|Not Tradable}}
| Controlled by item server.
|-
! 154
| disguise on backstab
| additive
| Your Eternal Reward, Wanga Prick
| {{Tf2-item-attribute|positive|Upon a successful backstab you rapidly disguise as your victim}} 
| Spy only.
|-
! 155
| cannot disguise
| additive
| Your Eternal Reward, Wanga Prick
| {{Tf2-item-attribute|negative|Wearer cannot disguise}}
| Removes Disguise Kit from inventory.
|-
! 156
| silent killer
| additive
| Your Eternal Reward, Wanga Prick, Spy-cicle
| {{Tf2-item-attribute|positive|Silent Killer: No attack noise from backstabs}} 
| Spy only.  Only applies on backstab.
|-
! 157
| disguise speed penalty
| additive
|
| {{Tf2-item-attribute|negative|%s1 sec slower disguise speed}}
|
|-
! 158
| add cloak on kill
| additive
| Big Earner
| {{Tf2-item-attribute|positive|+%s1 cloak on kill}} 
| Spy only.  Only applies on backstab. Do not use this and 166 on the same weapon.
|-
! 159
| cloak blink time penalty
| additive
| Saharan Spy Set Penalty
| {{Tf2-item-attribute|negative|%s1 sec longer cloak blink time}}
| Blink time doesn't apply to the first 6.5 seconds of a Dead Ringer cloak.
|-
! 160
| quiet unstealth
| additive
| Saharan Spy Set Bonus
| {{Tf2-item-attribute|positive|Reduced decloak sound volume}} 
| May still play sounds at normal volume to the player with it equipped.
|-
! 161
| flame size penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% less flame spread area}} 
| Flamethrowers only
|-
! 162
| flame size bonus
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% more flame spread area}} 
| Flamethrowers only
|-
! 163
| flame life penalty
| percentage
|
| {{Tf2-item-attribute|negative|%s1% less flame distance}} 
| Flamethrowers only
|-
! 164
| flame life bonus
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% more flame distance}} 
| Flamethrowers only
|-
! 165
| charged airblast
| additive
|
| {{Tf2-item-attribute|positive|Airblast can now be charged, which will push enemies further}} 
| Flamethrowers only
|-
! 166
| add cloak on hit
| additive
| L'Etranger
| {{Tf2-item-attribute|positive|+%s1 cloak on hit}} 
| Do not use this and 158 on the same weapon.
|-
! 167
| disguise damage reduction
| percentage
|
|
| Spy only.  Likely not implemented.
|-
! 168
| disguise no burn
| additive
|
| {{Tf2-item-attribute|positive|Immune to fire damage while disguised}} 
| Spy only.  Likely not implemented.  Use attribute 361 instead.
|-
! 169
| dmg from sentry reduced
| inverted percentage
| Tank Buster Set Bonus
| {{Tf2-item-attribute|positive|+%s1% sentry damage resistance on wearer}} 
|
|-
! 170
| airblast cost increased
| percentage
| Backburner
| {{Tf2-item-attribute|positive|+%s1% airblast cost}} 
| Flamethrowers only
|-
! 171
| airblast cost decreased
| percentage
|
| {{Tf2-item-attribute|positive|%s1% airblast cost}} 
| Flamethrowers only
|-
! 172
| purchased
| additive
| 
| {{Tf2-item-attribute|neutral|Purchased: Not Tradable or Usable in Crafting}}
| Obsolete attribute.  Controlled by item server.
|-
! 173
| flame ammopersec increased
| percentage
|
| {{Tf2-item-attribute|negative|+%s1% flamethrower ammo consumed per second}} 
| Flamethrowers only
|-
! 174
| flame ammopersec decreased
| percentage
|
| {{Tf2-item-attribute|positive|%s1% flamethrower ammo consumed per second}} 
| Flamethrowers only
|-
! 175
| jarate duration
| additive
| Sydney Sleeper
| {{Tf2-item-attribute|positive|On Hit: Jarate applied to target for %s1 seconds}} 
| Despite the name, not used on Jarate itself.
|-
! 176
| no death from headshots
| additive
| Croc-o-Style Kit Set Bonus
| {{Tf2-item-attribute|positive|The wearer cannot be killed by headshots}} 
| If you have more than one health and get headshot, reduces you to 1 health.  If you have 1 health, headshots will still kill you.
|-
! 177
| deploy time increased
| percentage
| Fists of Steel
| {{Tf2-item-attribute|positive|%s1% longer weapon switch}} 
| This controls the weapon switch time
|-
! 178
| deploy time decreased
| inverted percentage
| Degreaser, Reserve Shooter
| {{Tf2-item-attribute|positive|%s1% faster weapon switch}} 
| This controls the weapon switch time
|-
! 179
| minicrits become crits
| additive
| Bushwacka
| {{Tf2-item-attribute|positive|Crits whenever it would normally mini-crit}} 
|
|-
! 180
| heal on kill
| additive
| Powerjack
| {{Tf2-item-attribute|positive|+%s1 health restored on kill}}
| See attribute 220 for the percentage version.
|-
! 181
| no self blast dmg
| additive
| Rocket Jumper, Stickybomb Jumper
| {{Tf2-item-attribute|positive|No self inflicted blast damage taken}}
|
|-
! 182
| slow enemy on hit major
| additive
|
| {{Tf2-item-attribute|positive|On Hit: Slow target movement by 40% for %s1s}} 
| Use attribute 32 instead.
|-
! 183
| aiming movespeed decreased
| percentage
| Brass Beast
| {{Tf2-item-attribute|negative|%s1% slower move speed while deployed}}
| Minigun only
|-
! 184
| duel loser account id
| account id
| Duel Medal
|
| Controlled by item server. Usage unknown.
|-
! 185
| event date
| date
| Gifted items, received items
| {{Tf2-item-attribute|neutral|Date Received: %s1%}}
| Controlled by item server.
|-
! 186
| gifter account id
| account id
| Gifted items
| {{Tf2-item-attribute|neutral|Gift from: %s1%}}
| Controlled by item server.
|-
! 187
| set supply crate series
| additive
| Supply Crate, Supply Crate 2, Supply Crate 3, Supply Crate Rare.
| {{Tf2-item-attribute|positive|Crate Series #%s1}}
| Controlled by item server. Sets the series of the Mann Co. Supply Crates that currently drop.
|-
! 188
| preserve ubercharge
| additive
| Vita-Saw
| {{Tf2-item-attribute|positive|On death up to %s1% of your stored ÜberCharge is retained}} 
| Preserves this much ubercharge across deaths.
|-
! 189
| elevate quality
| unknown, assumed additive
|
|
| Controlled by item server. Usage unknown... likely used internally to mark items as Strange, Vintage, Genuine, Unusual, Self-Made, or Community.
|-
! 190
| active health regen
| additive
|
| {{Tf2-item-attribute|positive|+%s1 health regenerated per second on wearer}} 
| Version of attribute 57 used with attribute 128.
|-
! 191
| active health degen
| additive
| Gloves of Running Urgently (G.R.U.)
| {{Tf2-item-attribute|negative|+%s1 health drained per second on wearer}} 
| Version of attribute 129 used with attribute 128.
|-
! 192
| referenced item id low
| unknown, assumed additive
|
|
| Controlled by item server, usage unknown.
|-
! 193
| referenced item id high
| unknown, assumed additive
|
|
| Controlled by item server, usage unknown.
|-
! 194
| referenced item def
| item def
| Gift-wrapped item
| {{Tf2-item-attribute|neutral|Contains: %s1}} 
| Controlled by item server, usage unknown.
|-
! 195
| always tradable
| additive
|
| {{Tf2-item-attribute|negative|Always Tradable}}
|
|-
! 196
| noise maker
| additive
| Noise Makers
| {{Tf2-item-attribute|neutral|Noise Maker}}
| Description only
|-
! 197
| halloween item
| additive
| Halloween items
| {{Tf2-item-attribute|neutral|This is a special Halloween %s1 item}}
| Description only
|-
! 198
| collection bits
| unknown, assumed additive
|
|
| Controlled by item server.  Presumably set if a user has all parts of a collection equipped.
|-
! 199
| fires healing bolts
| additive
| Crusader's Crossbow
| {{Tf2-item-attribute|positive|Fires special bolts that heal teammates and deal damage based on distance traveled}} 
| Healing bolts heal allies and damage enemies. They do/heal more damage the farther they travel.
|-
! 200
| enables aoe heal
| additive
| Amputator
| {{Tf2-item-attribute|positive|On Taunt: Applies a healing effect to all nearby teammates}} 
| Taunt with this weapon out to heal nearby allies
|-
! 201
| gesture speed increase
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% faster taunt speed on wearer}} 
| Taunt speed increase
|-
! 202
| charge time increased
| additive
| Claidheamh Mòr
| {{Tf2-item-attribute|positive|%s1 sec increase in charge duration}} 
| Demoman only. Increases how long you charge for when using the Chargin' Targe or Splendid Screen.
|-
! 203
| drop health pack on kill
| additive
| Candy Cane
| {{Tf2-item-attribute|positive|On Kill: A small health pack is dropped}} 
| makes enemies drop health packs when killed, may not stack with Medieval Mode.
|-
! 204
| hit self on miss
| additive
| Boston Basher, Three-Rune Blade
| {{Tf2-item-attribute|negative|On Miss: Hit yourself. Idiot.}}
| Best description in the game.  Only applies to melee weapons.
|-
! 205
| dmg from ranged reduced
| percentage
| Fists of Steel
| {{Tf2-item-attribute|positive|%s1% damage from ranged sources while active}} 
|
|-
! 206
| dmg from melee increased
| percentage
| Fists of Steel
| {{Tf2-item-attribute|negative|+%s1% damage from melee sources while active}}
|
|-
! 207
| blast dmg to self increased
| percentage
| Loch-n-Load, Detonator
| {{Tf2-item-attribute|negative|+%s1% damage to self}}
|
|-
! 208
| Set DamageType Ignite
| additive
| Sharpened Volcano Shard
| {{Tf2-item-attribute|positive|On Hit: target is engulfed in flames}}
|
|-
! 209
| minicrit vs burning player
| additive
|
| {{Tf2-item-attribute|positive|100% minicrits vs burning players}} 
| Formerly used on Sun-on-a-Stick.
|-
! 210
| paint effect
| unknown, assumed additive
| Painted items
|
| Controlled by item server.  Paint style.
|-
! 211
| tradable after date
| date
| Tools purchased from the Mann Co. Store
| {{Tf2-item-attribute|neutral|Tradable After: %s1}} 
| Controlled by item server.
|-
! 212
| force level display
| unknown, assumed additive
|
|
| Controlled by item server.
|-
! 213
| random level curve replacement
| unknown
|
|
| Controlled by item server.
|-
! 214
| kill eater
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange weapons.
|-
! 215
| apply z velocity on damage
| unknown, assumed additive
|
|
| Unknown attribute, may be used on Valve weapons.
|-
! 216
| apply look velocity on damage
| unknown, assumed additive
|
|
| Unknown attribute, may be used on Valve weapons.
|-
! 217
| sanguisuge
| additive
| Conniver's Kunai
| {{Tf2-item-attribute|positive|On Backstab: Absorbs the health from your victim.}} 
| Spy only.  Steal enemy health on kill, up to 3x max HP as an overheal.
|-
! 218
| mark for death
| additive
| Fan O' War
| {{Tf2-item-attribute|positive|On Hit: One target at a time is marked for death, causing all damage taken to be mini-crits}} 
| Wears off after a while.  Only one enemy can be marked as a time.
|-
! 219
| decapitate type
| unknown, assumed additive
| Eyelander, Horsless Headless Horsemann's Headtaker, Half-Zoitichi, Nessie's Nine Iron
|
| Hidden attribute, may control animations used by weapon.
|-
! 220
| restore health on kill
| additive
| Half-Zoitichi
| {{Tf2-item-attribute|positive|On Kill: Restores you to %s1% health}}
| Restores your health to a specified percent.  See attribute 180 for the amount version.
|-
! 221
| mult decloak rate
| additive
|
|
| Spy only.  Decloak faster?
|-
! 222
| mult sniper charge after bodyshot
| percentage
|
| {{Tf2-item-attribute|positive|On Scoped Bodyshot: Rifle charge rate increased by %s1%}} 
| Not implemented, use tf_weapon_sniperrifle_decap weapon class instead.
|-
! 223
| mult sniper charge after miss
| percentage
|
| {{Tf2-item-attribute|negative|On Scoped Miss: Rifle charge rate decreased by %s1%}} 
| Not implemented, use tf_weapon_sniperrifle_decap weapon class instead.
|-
! 224
| dmg bonus while half dead
| percentage
| Shahanshah
| {{Tf2-item-attribute|positive|%s1% increase in damage when health <50% of max}} 
|
|-
! 225
| dmg penalty while half alive
| percentage
| Shahanshah
| {{Tf2-item-attribute|negative|%s1% decrease in damage when health >50% of max}} 
|
|-
! 226
| honorbound
| additive
| Half-Zoitichi
| {{Tf2-item-attribute|negative|Honorbound: Once drawn cannot be sheathed until it kills.}} 
|
|-
! 227
| custom texture hi
| unknown, assumed additive
|
|
| Controlled by item server. Usage unknown.
|-
! 228
| makers mark id
| account id
| Crafted items
| {{Tf2-item-attribute|neutral|Crafted by %s1}}
| Controlled by item server.
|-
! 229
| unique craft index
| unknown, assumed additive
| Crafted items
|
| Always shown on items with craft numbers below 100.
|-
! 230
| mod medic killed revenge
| additive
|
| {{Tf2-item-attribute|positive|When the medic healing you is killed you gain 2 revenge crits}} 
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 231
| medigun charge is megaheal
| additive
| Quick-Fix
| {{Tf2-item-attribute|neutral|ÜberCharge increases healing by 300% and grants immunity to movement-impairing effects}}
| Also grants speed increase when healing Scouts?
|-
! 232
| mod medic killed minicrit boost
| additive
|
| {{Tf2-item-attribute|positive|When the medic healing you is killed you gain mini-crit boost for %s1 seconds}}
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 233
| mod medic healed damage bonus
| additive
|
| {{Tf2-item-attribute|positive|While a medic is healing you, this weapon's damage is increased by %s1%}}
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 234
| mod medic healed deploy time penalty
| percentage
|
| {{Tf2-item-attribute|negative|While not being healed by a medic,<br>your weapon switch time is %s1% longer}}
| Formerly used in TF2 Beta for Pocket Soldier weapons
|-
! 235
| mod shovel speed boost
| additive
|
|
| Formerly used in TF2 Beta for Split Equalizer weapons.
|-
! 236
| mod weapon blocks healing
| additive
|
|
| Formerly used in TF2 Beta for Split Equalizer weapons.
|-
! 237
| mult sniper charge after headshot
| percentage
|
| {{Tf2-item-attribute|positive|On Scoped Headshot: Rifle charge rate increased by %s1%}} 
| Use tf_weapon_sniperrifle_decap weapon class instead.
|-
! 238
| minigun no spin sounds
| additive
| Tomislav
| {{Tf2-item-attribute|positive|Silent Killer: No barrel spin sound}} 
| Gun still clicks when spinning starts and stops.
|-
! 239
| ubercharge rate bonus for healer
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% ÜberCharge rate for the medic healing you.  This effect does not work in the respawn room}} 
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 240
| reload time decreased while healed
| inverted percentage
|
| {{Tf2-item-attribute|positive|%s1% faster reload time while being healed}} 
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 241
| reload time increased hidden
| percentage
| Shortstop
| {{Tf2-item-attribute|negative|%s1% slower reload time}}
| Hidden version of attribute 96.
|-
! 242
| mod medic killed marked for death
| additive
|
| {{Tf2-item-attribute|positive|When the medic healing you is killed the killer becomes marked for death}} 
| Formerly used in TF2 Beta for Pocket Soldier weapons.
|-
! 243
| mod rage on hit penalty
| additive
|
| {{Tf2-item-attribute|negative|%s1% rage lost on hit}} 
|
|-
! 244
| mod rage on hit bonus
| additive
|
| {{Tf2-item-attribute|positive|%s1% rage gained on hit}} 
|
|-
! 245
| mod rage damage boost
| percentage
|
| {{Tf2-item-attribute|positive|Gains a damage bonus as rage increases, up to %s1%}} 
|
|-
! 246
| mult charge turn control
| percentage
| Ali Baba's Wee Booties, Bootlegger
| {{Tf2-item-attribute|positive|+%s1% increase in turning control while charging}} 
| Demoman only.  Also requires Chargin' Targe or Splendid Screen (or their charging effect).
|-
! 247
| no charge impact range
| additive
| Splendid Screen
| {{Tf2-item-attribute|positive|Can deal charge impact damage at any range}} 
| Demoman only. Currently also allows the next melee to crit.  This is likely a bug.
|-
! 248
| charge impact damage increased
| percentage
| Splendid Screen
| {{Tf2-item-attribute|positive|+%s1% increase in charge impact damage}} 
|
|-
! 249
| charge recharge rate increased
| percentage
| Persian Persuader
| {{Tf2-item-attribute|positive|+%s1% increase in charge recharge rate}} 
| Demoman only.  Also requires Chargin' Targe or Splendid Screen.
|-
! 250
| air dash count
| additive
| Atomizer
| {{Tf2-item-attribute|positive|Grants Triple Jump: The third jump deals 10 damage when used}} 
| Allows additional jump.
|-
! 251
| speed buff ally
| additive
| Disciplinary Action
| {{Tf2-item-attribute|positive|On Hit Ally: Boosts both players' speed for several seconds}} 
|
|-
! 252
| damage force reduction
| percentage
| Mantreads
| {{Tf2-item-attribute|positive|%s1% reduction in push force taken from damage}} 
|
|-
! 253
| mult cloak rate
| additive
| Enforcer
| {{Tf2-item-attribute|negative|%s1% sec increase in time to cloak}}
| Spy only.
|-
! 254
| airblast functionality flags
| unknown, assumed additive
|
|
| Requires Flamethrower.  Likely doesn't work.
|-
! 255
| airblast pushback scale
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% airblast push force}} 
| Requires Flamethrower.  Likely doesn't work.
|-
! 256
| mult airblast refire time
| unknown, assumed additive
|
|
| Requires Flamethrower.  Likely doesn't work.
|-
! 257
| airblast vertical pushback scale
| unknown, assumed additive
|
|
| Requires Flamethrower.  Likely doesn't work.
|-
! 258
| ammo becomes health
| additive
| Persian Persuader
| {{Tf2-item-attribute|positive|All ammo collected becomes health}} 
| The amount of health restored is not specified here, but controlled by the game engine.
|-
! 259
| boots falling stomp
| additive
| Mantreads
| {{Tf2-item-attribute|positive|Deals 3x falling damage to the player you land on}} 
| Deals 3x the amount of fall damage you would have taken to the person you land on.
|-
! 260
| deflection size multiplier
| additive
|
|
| Unknown, possible Flamethrower reflect related.
|-
! 261
| set item tint RGB 2
| additive
| Dual-color painted items
| {{Tf2-item-attribute|neutral|Item tint color code: %s1}}
| Controlled by item server.  BLU paint color for dual-color paints.
|-
! 262
| saxxy award category
| additive
| Saxxy
| {{Tf2-item-attribute|neutral|Winner: %s1 %s2}}
| Controlled by item server
|-
! 263
| melee bound multiplier
| unknown, assumed percentage
| Disciplinary Action
|
| Supposed to affect the hitboxes of friendly players when hitting them.  Doesn't appear to work.
|-
! 264
| melee range multiplier
| unknown, assumed percentage
| Disciplinary Action
|
| Supposed to affect the melee range of this weapon for friendly players.  Doesn't appear to work.
|-
! 265
| mod mini-crit airborne deploy
| additive
| Reserve Shooter
| {{Tf2-item-attribute|positive|Mini-crits airborne targets for %s1 seconds after being deployed}} 
| mini-crits any airborne enemies for n seconds after switching to this weapon.
|-
! 266
| projectile penetration
| additive
|
| {{Tf2-item-attribute|positive|Projectiles penetrate enemy players}} 
| Use other attributes instead.
|-
! 267
| mini-crit while airborne
| additive
| Market Gardener
| {{Tf2-item-attribute|positive|Deals crits while the wielder is rocket jumping}} 
| mini-crit enemies if you hit them while '''you're''' airborne.
|-
! 268
| mult sniper charge penalty DISPLAY ONLY
| percentage
| Bazaar Bargain
| {{Tf2-item-attribute|negative|Base charge rate decreased by %s1%}}
| Display only.  Actually charge logic is handled by the tf_sniper_rifle_decap class.
|-
! 269
| mod see enemy health
| additive
| Solemn Vow
| {{Tf2-item-attribute|positive|Allows you to see enemy health}} 
| No effect for Spies; they can already see enemy health.
|-
! 279
| maxammo grenades1 increased
| percentage
|
|
| Valve was high when adding this, they forgot they removed grenades from TF2 years ago.
|-
! 280
| override projectile type
| additive
| Stickybomb Jumper
|
| Value 14 changes the sticky model to the Sticky Jumper stickies.  This is likely due to the sticky model changing after the weapon was introduced.
|-
! 281
| energy weapon no ammo
| additive
| Cow Mangler 5000, Righteous Bison, Pomson 6000, Manmelter
| {{Tf2-item-attribute|positive|Does not require ammo}} 
| Replaces this weapon's ammo display with Energy display.
|-
! 282
| energy weapon charged shot
| additive
| Cow Mangler 5000
| {{Tf2-item-attribute|positive|Alt-Fire: A charged shot that mini-crits players and disables buildings for 4 sec}} 
| Adds alt-fire charged shot that uses all energy to fire.
|-
! 283
| energy weapon penetration
| additive
| Righteous Bison, Pomson 6000
| {{Tf2-item-attribute|positive|Projectile penetrates enemy targets}} 
| Shot penetrates targets.  Requires attribute 281.
|-
! 284
| energy weapon no hurt building
| additive
| Cow Mangler 5000, Righteous Bison
| {{Tf2-item-attribute|negative|Deals only 20% damage to buildings}}
| May also apply to other energy weapons, but is not noted in their descriptions.
|-
! 285
| energy weapon no deflect
| additive
| Righteous Bison, Pomson 6000, Manmelter
| {{Tf2-item-attribute|positive|Projectile cannot be deflected}} 
|
|-
! 288
| no crit boost
| additive
| Cow Mangler 5000
| {{Tf2-item-attribute|positive|Cannot be crit boosted}}
| Not just by random crits, but also by Kritzkrieg or Buff Banner or any other source.
|-
! 289
| centerfire projectile
| unknown, assumed additive
| The Original
|
| Requires Rocket Launcher
|-
! 292
| kill eater score type
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange weapons.
|-
! 293
| kill eater score type 2
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange weapons.
|-
! 294
| kill eater 2
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange weapons.
|-
! 295
| has pipboy build interface
| unknown, assumed additive
| Pip-Boy
|
| Engineer only, changes build interface to Pip-Boy version.
|-
! 296
| sapper kills collect crits
| additive
| Diamondback
| {{Tf2-item-attribute|positive|Gives one guaranteed critical hit for each building destroyed with your sapper attached}} 
| Spy only.  One crit per building killed by a Sapper (even if it assisted).
|-
! 297
| sniper only fire zoomed
| additive
| Machina
| {{Tf2-item-attribute|negative|Cannot fire unless zoomed}}
|
|-
! 298
| mod ammo per shot
| additive
| Widowmaker, Short Circuit
| {{Tf2-item-attribute|negative|Per Shot: -%s1 ammo}}
| Engineer only.  Despite the name, subtracts metal rather than ammo.
|-
! 299
| add onhit addammo
| additive
| Widowmaker
| {{Tf2-item-attribute|positive|On Hit: damage dealt is returned as ammo}} 
| Engineer only.  Despite the name, adds metal rather than ammo.
|-
! 300
| electrical airblast DISPLAY ONLY
| additive
| Short-Circuit
| {{Tf2-item-attribute|positive|On Fire: Generates an electrical field that destroys projectiles and does slight damage to players}} 
| Short-Circuit's display text. If you want the Short-Circuit effect, you need to create a tf_weapon_mechanical_arm.
|-
! 301
| mod use metal ammo type
| additive
| Widowmaker, Short Circuit
| {{Tf2-item-attribute|negative|Uses metal for ammo}}
| Engineer only.
|-
! 302
| expiration date
| date
| Winter Crate, Refreshing Summer Cooler, Naughty Winter Crate, Nice Winter Crate
| {{Tf2-item-attribute|neutral|This item will expire on %s1.}}
| Controlled by item server.
|-
! 303
| mod max primary clip override
| unknown, assumed additive
| Widowmaker, Short-Circuit
|
| -1 makes ammo display disappear.  Possibly Engineer only.
|-
! 304
| sniper full charge damage bonus
| percentage
| Machina
| {{Tf2-item-attribute|positive|On Full Charge: +%s1% damage per shot}} 
|
|-
! 305
| sniper fires tracer DISPLAY ONLY
| additive
| Machina
| {{Tf2-item-attribute|negative|Fires tracer rounds}}
| Tracer is actually handled by one of the other attributes.  Not sure which one.
|-
! 306
| sniper no headshot without full charge
| additive
| 
| {{Tf2-item-attribute|negative|No headshots when not fully charged}}
| Formerly used in TF2 Beta on Beta Sniper Rifle (which became Bazaar Bargain)
|-
! 307
| mod no reload DISPLAY ONLY
| additive
| Widowmaker, Short-Circuit
| {{Tf2-item-attribute|positive|No reload necessary}} 
| No reload necessary display text.
|-
! 308
| sniper penetrates players when charged
| additive
| Machina
| {{Tf2-item-attribute|positive|On Full Charge: Projectiles penetrate players}} 
| Sniper only.  Only works while fully charged.
|-
! 309
| crit kill will gib
| additive
| Apoco-Fists
| {{Tf2-item-attribute|positive|Killing an enemy with a critical hit will dismember your victim. Painfully.}} 
|
|-
! 311
| unlimited quantity
| additive
| Birthday Noisemaker
| {{Tf2-item-attribute|neutral|Unlimited use}} 
| Only applies to Action-slot items.
|-
! 312
| disable weapon hiding for animations
| unknown, assumed additive
| Short-Circuit
|
| Prevents the weapon from vanishing during taunts.
|-
! 317
| store sort override DEPRECATED
| unknown, assumed additive
|
|
| Used internally by the Mann Co. Store.
|-
! 322
| taunt is press and hold
| unknown, assumed additive
| High Five Taunt
|
| Used by action slot items.
|-
! 328
| disable fancy class select anim
| unknown, assumed additive
| Force-a-Nature, Huntsman, Direct Hit, Shortstop, Black Box, Original, Sharp Dresser
|
| Disables animations for weapons they don't work with in the class select screen.
|-
! 330
| override footstep sound set
| unknown, assumed additive
| Ball-Kicking Boots
|
| Changes sound set used by footsteps.  Incompatible with attribute  .
|-
! 331
| spawn with physics toy
| unknown, assumed additive
| Ball-Kicking Boots
|
| 1 spawns soccer ball near player when player spawns.
|-
! 332
| fish damage override
| unknown, assumed additive
| Unarmed Combat
|
| 1 changes the Fish Hit and Fish Kill messages to their Unarmed Combat equivalents
|-
! 333
| special dsp
| unknown, assumed additive
| Brundle Bundle Set Bonus
|
| Pitch shifts voice clips from this player
|-
! 334
| bombnomicon effect on death
| additive
| Bombnomicon
| {{Tf2-item-attribute|positive|Explode spectacularly on death}} 
| Makes players explode after death.
|-
! 335
| clip size bonus upgrade
| percentage
|
| {{Tf2-item-attribute|positive|+%s1% clip size}} 
|
|-
! 337
| subtract victim medigun charge on hit
| additive
| Pomson 6000
| {{Tf2-item-attribute|positive|On Hit: Victim loses %s1% Medigun charge}} 
| Value is actually the whole number version of the percent it takes away from the Medic on hit.
|-
! 338
| subtract victim cloak on hit
| additive
| Pomson 6000
| {{Tf2-item-attribute|positive|On Hit: Victim loses %s1% cloak}} 
| Value is actually the whole number version of the percent it takes away from the Spy on hit.  Currently bugged when it hits cloaked Spies and removes several times this amount.
|-
! 339
| reveal cloaked victim on hit
| additive
|
| {{Tf2-item-attribute|positive|On Hit Spy: Reveal cloaked Spy}} 
| Even more broken version of the Pomson effect.
|-
! 340
| reveal disguised victim on hit
| additive
|
| {{Tf2-item-attribute|positive|On Hit Spy: Reveal disguised Spy}} 
| Even more broken version of the Pomson effect.
|-
! 346
| mod bat launches ornaments
| additive
| Wrap Assassin
| {{Tf2-item-attribute|positive|Alt-Fire: Launches a festive ornament that shatters causing bleed}} 
| Launches bleed ornaments.  For stunballs, see attribute 38.
|-
! 347
| freeze backstab victim
| additive
| Spy-cicle
| {{Tf2-item-attribute|negative|Backstab turns victim to ice}}
| Freeze sound volume is buggy.
|-
! 348
| fire rate penalty HIDDEN
| unknown, assumed percentage
| Manmelter
|
| Hidden version of attribute 5.
|-
! 349
| energy weapon no drain
| unknown, assumed additive
|
|
|
|-
! 350
| ragdolls become ash
| unknown, assumed additive
| Phlogistinator, Manmelter
|
|
|-
! 352
| alt fire teleport to spawn
| additive
| Eureka Effect
| {{Tf2-item-attribute|positive|On Alt-Fire: Teleport to spawn}} 
| May not work correctly without attribute 353 also present.
|-
! 353
| cannot pick up buildings
| additive
| Eureka Effect
| {{Tf2-item-attribute|negative|Cannot carry buildings}}
| Just like TF2 prior to the Engineer update!
|-
! 354
| stun enemies wielding same weapon
| additive
|
| {{Tf2-item-attribute|positive|Stuns enemies who are also wielding this weapon}} 
| Use attribute 369 instead.
|-
! 356
| airblast disabled
| additive
| Phlogistinator
| {{Tf2-item-attribute|negative|No airblast}}
| Replaced attributes 23 and 27.
|-
! 357
| increase buff duration HIDDEN
| unknown, assumed percentage
|
|
| Likely increases the length of Soldier buffs.
|-
! 358
| crit forces victim to laugh
| additive
| Holiday Punch
| {{Tf2-item-attribute|positive|Critical hit forces victim to laugh}} 
| Mini-crits do not cause victim to laugh.
|-
! 359
| melts in fire
| additive
| Spy-cicle
| {{Tf2-item-attribute|negative|Melts in fire, regenerates after %s1 seconds}}
| Knife only?
|-
! 360
| damage all connected
| additive
| Third Degree
| {{Tf2-item-attribute|positive|All players connected via Medigun beams are hit}} 
| Can follow multiple Medic beams.
|-
! 361
| become fireproof on hit by fire
| additive
| Spy-cicle
| {{Tf2-item-attribute|positive|On Hit by Fire: Become fireproof for %s1 seconds}} 
| Makes loud extinguish sound.  Also causes player to say their "on fire" line (or that of their disguise).  Argument is number of seconds to be fireproof.
|-
! 362
| crit from behind
| additive
| Holiday Punch
| {{Tf2-item-attribute|positive|Always critical hit from behind}} 
| It is unclear if this attribute and attribute 24 are identical.
|-
! 363
| crit does no damage
| additive
| Holiday Punch
| {{Tf2-item-attribute|negative|Critical hits do no damage}}
|
|-
! 364
| add jingle to footsteps
| additive
| Jingle Belt, Bootie Time
| {{Tf2-item-attribute|negative|Jingle all the way}}
| Marked as negative despite removing standard footstep sounds.
|-
! 365
| set icicle knife mode
| unknown, assumed additive
| Spy-cicle
|
| May be identical to lunchbox adds minicrits.
|-
! 367
| extinguish earns revenge crits
| additive
| Manmelter
| {{Tf2-item-attribute|positive|Alt-Fire: Extinguish teammates to gain guaranteed critical hits}} 
| It isn't clear if this would work with Jarate, Milk, healing, or airblast.
|-
! 368
| burn damage earns rage
| additive
| Phlogistinator
| {{Tf2-item-attribute|positive|All fire damage charges 'Mmmph', activate to refill health and crit for several seconds}} 
| Rage appears to be connected to the weapon rather than the player, and it resets on touching a resupply cabinet.
|-
! 369
| tickle enemies wielding same weapon
| additive
| Holiday Punch
| {{Tf2-item-attribute|positive|On Hit: Force enemies to laugh who are also wearing this item}} 
| Forces players to do the laugh taunt.
|-
! 370
| attach particle effect static
| particle index
| Cheater's Lament, Lord Cockswain's Novelty Mutton Chops and Pipe, Bubble Pipe, Outback Intellectual, Nine-Pipe Problem, Aladdin's Private Reserve, Waxy Wayfinder
| {{Tf2-item-attribute|neutral|Effect: %s1}}
| Seems to be for adding effects to non-Unusual hats.
|-
! 371
| taunt success sound
| additive
| Boston Boom-Bringer
|
| Causes one of several random sounds to play when taunting.
|-
! 372
| accepted wedding ring account id 1
| account id
| Something Special for Someone Special
| {{Tf2-item-attribute|positive|A perpetual bond of commitment between %s1}}
| Only appears on item version.
|-
! 373
| accepted wedding ring account id 2
| account id
| Something Special for Someone Special
| {{Tf2-item-attribute|positive|and %s1, forever and ever and ever. XoXoX}}
| Only appears on item version.
|-
! 374
| tool escrow until date
| date
|
| {{Tf2-item-attribute|negative|Usable After: %s1}}
| It's unclear when a tool would be in escrow instead of temporarily untradable.
|-
! 376
| aiming no flinch
| additive
| Cozy Camper
| {{Tf2-item-attribute|positive|No flinching when aiming}} 
| Sniper only.
|-
! 377
| aiming knockback resistance
| inverted percentage
| Cozy Camper
| {{Tf2-item-attribute|positive|Knockback reduced by %s1% when aiming}} 
| Sniper only.
|-
! 379
| kill eater user 1
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 380
| kill eater user score type 1
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 381
| kill eater user 2
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 382
| kill eater user score type 2
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 383
| kill eater user 3
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 384
| kill eater user score type 3
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 385
| strange part new counter ID
| unknown, assumed additive
| Strange weapons
|
| One of many entries for Strange parts.
|-
! 388
| kill eater kill type
| unknown, assumed additive
| Strange weapons
|
| One of many kill eater entries for Strange parts.
|-
! 391
| mystery solving time decrease
| percentage
| Eliminating the Impossible Set Bonus
| {{Tf2-item-attribute|positive|Reduces mystery solving time by up to %s1%}} 
| Display only, does nothing in game...  yet.
|-
! 401
| chance of hunger decrease
| percentage
| Dual-Purpose Fruit Set Bonus
| {{Tf2-item-attribute|positive|Reduces chance of hunger by up to %s1%}} 
| Display only, does nothing in game... yet.
|}