Whitelist Request

• Name of the game to be whitelisted: Windosill
• Steam AppID of the game: 37600

System Information

• GPU: Intel Open Source Technology Center Mesa DRI Intel(R) Sandybridge Desktop x86/MMX/SSE2
• Driver/LLVM version: 3.0 Mesa 18.0.5
• Kernel version: 4.15.0-34-generic
• Link to full system information report as Gist: link
• Proton version: 3.7-6 Beta

I confirm:

• [x] that pressing the Play button in the Steam client is sufficient.
• [ ] that runtime config options are necessary to run the game.
• [ ] that no workarounds other than the mentioned ones are necessary.

Issues

• [x] I haven't experienced any issues.
• [x] There are no issues left open for this game.
• [ ] Although I consider the gaming experience equal to Windows there are
  remaining issues:

I've just completed the game and everything worked fine.