Dragon Marked for Death compatibility in Proton has been perfect so far. It seems to work fine with PROTON_USE_WINED3D11=1 if your dxvk isn't up to date enough to run it. When I heard about how the witch played I knew I had to try her and she hasn't disappointed. Her thunder magic appears exactly screenshot related distance away after a delay so I first thought it was useless bullshit, but it hits hard. Specializing in wind is more recommended by people and definitely easier. Launch options I've used often to get games to work with Proton. Put %command% after all Proton launch options like this: PULSE_LATENCY_MSEC=60 PROTON_NO_ESYNC=1 %command% PROTON_NO_ESYNC=1 >Can fix failure to start. Can fix random hangs during loading times even if ulimit -Hn returns 524288. PULSE_LATENCY_MSEC=60 >Fix audio crackling. PROTON_USE_WINED3D11=1 >Can fix failure to start if dxvk isn't working with it on your machine, but may cause other problems.