[2023] [Steam] Mods aren't working for online

Can you play with these people when NO mods at all are enabled? If not one or more of you has a bad game installation. Anyone who does NOT see checksum a370 in the main game menu or MP lobby (NOT in the launcher) needs to do a clean reinstall:

- move any valued save games elsewhere
- "uninstall" in Steam-CK3
- manually delete both the Steam/SteamApps/common/CK3 AND Documents/Paradox Interactive/CK3 folders
- re-install game in Steam, run a Steam Verify when done.
- add CK3.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.
- start the game with no mods active and test

In particular make sure there are no files or folders left under either the Steam CK3 or Documents CK3 locations, before installing again.


IF however you can play MP unmodded, then have everyone enable just ONE mod and test. If that works, all enable ONE more mod and test - you'll soon pin down the problem mod.

All. the best!  

Can you play with these people when NO mods at all are enabled?

If so, then try that test but with a different mod - same problem?

THEN each of you try it with some third person - which of you two still see the problem?