Mods
Casualties Unknown mod guides
The game has no official co-op or Workshop, so mods fill the gap. Most were built for the demo, so check each page for full-release notes before you install.
Where to start
Install the loader first, then add co-op or skins.
- How to install modsUnzip BepInEx into the game folder
- MultiplayerOnly available as a mod
- Best mods544 mods on Nexus
Every Casualties Unknown mod guide
- list Best mods
The most downloaded mods, what each one changes and how to combine them.
- 544 mods on Nexus
- QoL Unknown keeps the rules intact
- Add one mod at a time
- guide How to install mods
Step-by-step BepInEx setup for Windows, Linux and Steam Deck, and why a mod might not load.
- Unzip BepInEx into the game folder
- Mods go in BepInEx/plugins
- No Steam Workshop
- guide Multiplayer
How to install the Casualties Together co-op mod, what it changes and why friends cannot join.
- Only available as a mod
- Sleeping is off in co-op
- Everyone needs the same version
- guide Skins
Which skin mod to use, how to install skins and how they sync in multiplayer.
- Numbered CustomSprites folders
- Press the numpad to switch
- Host needs the mod too
- list Console commands
How to open the console, which commands are confirmed, and menu mods that replace typing.
- Open with the backtick key
- Type help for a list
- Test on a throwaway run
Mods questions players ask
Does Casualties Unknown have multiplayer?
Not officially. The Casualties Together mod adds co-op through Steam lobbies. Details →
How do you install mods?
Unzip BepInEx 5 x64 into the game folder, run the game once, then put the mod in BepInEx/plugins. Details →
What are the best mods?
Casualties Together, CUCoreLib, QoL Unknown and Prosthetics lead the Nexus download list. Details →
How do you change your skin?
Install a sprite replacer, put a skin in a numbered CustomSprites folder, and press the matching numpad key. Details →
How do you open the console?
Players report the backtick key. Type help to see the commands in your build. Details →
Is there Steam Workshop support?
No. Mods are installed by hand, mainly from Nexus Mods. Details →
Other sections: Survival · Health · Items · Layers · Characters · Game info · Updates