FYI if I set Compatibility to Legacy runtime 1.0 and update the Medieval2.sh file with the following, it will start (including the Kingdoms expansions). It will all run just fine.
However, I want to try to get Medieval 2 working with Protons as I believe it's the only proper way to get mods working.
Hello @PillagingProgrammer, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/6721#issuecomment-3689940811.
proton 10.0x1 2025-12proton 7.0x1 2025-12
Compatibility Report
System Information
- Video driver version: (I hope this is what you need)
I confirm:
steam-4700.logis completely empty.Symptoms
Game won't start. If I try with Proton 10.0 and 9.0, I get the pop-up
An error occured while launching the game: Disk write error - /media/<username>/X10 Pro/SteamLibrary/steamapps/downloading/3658110/files/lib/i386-linux-gnu/libdav1d.so(where<username>is my username) and the game never starts.8.0 and 7.0 will just crash (nothing pops ups and the game never starts).