Companion Crate is a skill which allows a shaman to spawn a large crate with several unique properties:

  • The crate is as heavy as an anvil.
  • Mice caught in the center of the crate are trapped inside.
    • Mice stay trapped until the crate despawns, is resummoned elsewhere, or is ghosted using the Architect skill.
  • The crate’s sides are slippery, like ice, and the top and bottom are sticky as chocolate.
    • The sticky base makes the crate exceptionally hard to push along normal ground, especially by other mice. While on ice ground, however, the crate slides freely.

Only one companion crate may exist on the map at a time; summoning another causes the previous crate to disappear. In rounds with multiple shaman, one shaman’s companion crate will replace another’s. Note that when an object disappears, any attached objects will fall if not anchored by another object.


The companion crate combines the effects of several basic objects into a single, efficient summon: it is all at once large, stable, heavy, and hard to budge. This makes the crate one of the fastest ways to anchor lightweight structures and bridges. Moreover, the companion crate serves as an effective, removable roadblock. Its slippery sidewalls prevent mice from wall jumping over, and the sticky base prevents pushing. Remove the roadblock by resummoning the companion crate in a different location.


While blocking mice with the companion crate can be helpful in making certain maps safer for the mice, a shaman may trap mice for any number of reasons including to deny or tease them. Also, a shaman may attempt to corral mice to keep them gathered for social skills like Chocokiss and Superstar.

Mice blocked by a companion crate might be calmed or entertained by giving them toys like the Beach Ball or by summoning a Campfire.

Dual ShamanEdit

A shaman imprisoned by the companion crate may summon objects from inside or escape the crate by either teleporting themself or by removing the crate.

If a shaman does not have the companion crate skill, the other shaman can use this as an advantage by placing the crate over the opposing hole as a blockage.


  • The companion crate is one of four items in the game that can trap mice permanently using a single summon. The others are the ice cubeearth symbol, and spider web.
    • Among these traps, the companion crate is the only one that can be removed at will without the aid of another shaman skill.
  • A custom map file can not place a companion crate, not even by using XML.


  • The companion crate is a reference to the Weighted Companion Cube, a staple of the Portal video game series created by game developer Valve.
    • In a similar vein, the crate’s ability to trap mice inside reflects a fan theory about the Weighted Companion Cube, disclosed by the “The Game TheoristsYouTube channel. The theory states that the cube stores human beings inside it.
    • The cube and the companion crate share the same heart mark on their side face. 
  • The companion crate’s hitbox is equivalent to a regular crate with four small planks bordering the edges.