Crashes on launch with the error message:

Win32 function failed: HRESULT: 0x800004005

Call: at line 223 in file \Graphics_DisplayM.cpp

Workaround:

Use the following option as a launch parameter: PROTON_USE_WINED3D11=1 %command%

or use PROTON_USE_WINED3D=1 %command%

Frequent crashes during gameplay:

Caused by the error:

eventfd: Too many open files Protocol error: process 0008: sendmsg: Bad file descriptor

Workaround: Increase the number of file descriptors. Default is 4096.