Hello @k-e-i-z-a-i, 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/5084#issuecomment-1699750514.
proton experimentalx1 2023-08
Compatibility Report
System Information
I confirm:
Symptoms
Game is unable to fully launch. Only shows as "Running" but the game never launches. I have attempted multiple different versions of Proton and adding "SteamDeck=1" to the launch options (as recommended by a user on ProtonDB) with no lasting success.
Oddly enough, the game did launch once and I was able to play it. The next day, the problem had returned despite the fact I made no modifications to the setup. I've read elsewhere of user complaining that the game has to be launched several times before successfully launching. Despite this, I've only ever gotten it to work the one time.
Reproduction
steam-1003590.log