An Eldritch idol of ancient evil that hungers for souls, the Soul Gargoyle is an item that counts souls collected by players when the item is activated during Halloween events. It allows players to use the Halloween Transmute feature and count Halloween Contracts (Merasmissions) completed during the same events. The Soul Gargoyle was first available during the Scream Fortress 2015 event and returned for the following Scream Fortress events. All players logging in to Team Fortress 2 during a Scream Fortress event received a Soul Gargoyle but not when Team Fortress 2 was simply in Halloween mode which makes all previous Halloween maps available.
This backpack item collects souls that represent kills and other points the player scores. All year long on Halloween maps, these collected souls appear as spooky white traces flying to the player from the bodies of slain victims, captured points, pushed carts, or other sources. During Halloween events only, the same soul collecting animations appear on all maps, and all souls collected in all games during the event are added to the Soul Gargoyle's Souls Collected count.
In Scream Fortress 2015 and 2016, this item granted access to Merasmissions, a Halloween Contracts set that was replaced in Scream Fortress 2017 by Halloween Contracts that operate under the recently introduced ConTracker. Halloween Contracts completed during the Events increase the Merasmissions Completed count.
Translucent green pickup versions (sometimes referred to as Ghost Gargoyles) randomly spawn on most Halloween maps (replacing Halloween Gift pickups, spawning in the same locations, if the map originally had them). They are announced by Merasmus for individual players, who can then find and pick up their own Soul Gargoyle, only visible to them. Picking up a Soul Gargoyle produces a swarm of animations and during Halloween scores the player 10 additional souls all at once. These souls also contribute to the Halloween contracts.
During Halloween events only, the collected souls are counted by the backpack item; similar to Strange Weapons; thus, the Soul Gargoyle in the backpack has a range of ranks that increase as the player collects souls.
The backpack model of the Soul Gargoyle improves as its rank increases through the first 4 ranks; the Soul Gargoyle starts at Stone quality and levels up with the following ranks:
| Level 1
|The Stone Sad Soul Gargoyle holds a skull.|
| Level 2
|The Bronze Silly Soul Gargoyle holds a twelve-sided die. The sides consist of a Swan emblem, the nine class emblems, a Saxton Hale emblem, and a cigarette emblem (signifying the Administrator).|
| Level 3
|The Silver Sneering Soul Gargoyle holds the talking pumpkin from the Gargoyles & Gravel comic.|
| Level 4
|The Australium Happy Soul Gargoyle holds a pile of "Gargoyles and Gravel" books, with the topmost one being the Gravel Master's Handbook.|
|Note: After the 4th level, only the name of the item changes; the icon remains the same.|
The Halloween Transmute feature allows players to trade in three qualifying items in exchange for an untradable, uncraftable cosmetic item from previous Scream Fortress events.
Every ten transmutes will result in the player receiving an additional bonus item, guaranteed to be of Haunted quality.
- Main article: Community Halloween maps strategy: Soul Gargoyles.
- The level up milestone '666' is a reference to the "Number of the Beast" in the New Testament Bible.
- The level up milestone '1337' is a reference to "Eleet" or "Leet-Speak", which replaces certain letters of the alphabet with numbers.