From Brotato Wiki
Brotato supports mods on the Steam Workshop, since Patch 0.8.0.3.
There are 2 Steam guides to help with modding:
- Modding Guide - Guide to modding Brotato (for mod creators)
- Modding Help - Help for players trying to use mods
The best place to discuss mods is in the official Brotato discord.
Before Steam Workshop support was added, this wiki hosted mods that could be manually installed. They can still be viewed here: Mods Archive.