Mod support

The sheer variety of RimWorld mods makes supporting all of them in multiplayer a difficult task. Currently there's a number of mods which work, but many will require manual compatibility patches.

All XML mods are supported and work correctly.
You can highlight XML mods by holding Shift in the ingame mod list (after enabling Multiplayer, of course).
Examples: More Trade Ships, Increased Stack, P-Music, EPOE

These types of mods have a high chance of working:

• Only affecting game creation, as multiplayer is hosted from existing saves Examples: Prepare Carefully
• With new interfaces not affecting gameplay logic Examples: Numbers, Color Coded Mood Bar
• With new gameplay logic but no custom interfaces Examples: RT Fuse
• Not affecting gameplay (e.g. mod managers)

Modded desyncs are usually caused by mods adding new GUI elements (although that's not always the case). Such mods are currently unsupported. An API and a compatibility guide will be released soon.

Links

Mod compatibility spreadsheet (also accessible using bot commands on Discord)

Steam collection of compatible mods (with config files for easier setup)

A mod by NotFood with compatibility patches for some popular mods

Documentation on multiplayer button and UI compatibility by Dunkhan