

After playing the game once, I was unable to ever manage the game again as Steam would crash every time simply on the app page with an error "V_AppendSlash: ran out of space on com.timconkling.aciv/...".
It's definitely some kind of developer bug that affects even managing the game. Right now I can't even delete Antihero from my Steam library without Steam crashing.
This didn't work for me in older Proton (i.e. Proton 1-3 era). In recent times, Dec 2019 onwards, it has been fine.


Ran through skirmish without any problems



When launching it puts a launch window onto the desktop, and immediately after that it tries to run in full-screen mode, and gives an error message: Error: Error # 3780



ran game, did first tutorial mission. seemed a bit jumpy/lags but could have been the tutorial.



Fails to start. Throws error 3780. Tried both the release version as well as the beta version of the game with same error. None of the tweaks worked.


Random Animation Stuttering


Played vs AI. No problems Everything worked as expected, including the weird mouse smoothing that's also present when playing on windows 10.



Solid whitelist candidate
