Hello @dennis1248, it might be interesting to test Proton Experimental with the game's launch options set to WINEDLLOVERRIDES="mfplay=d" %command% and see if that works around the video playback issue.
Hi @kisak-valve,
With WINEDLLOVERRIDES="mfplay=d" %command% the videos which previous displayed as a "TV test" now display in a solid white. The game also no longer freezes after the introduction videos but it does not load in to the main menu, it now instead appears to get "stuck" on the last video.
I've found a regression for this game when using Proton 10 (beta-1f) and Experimental (2025-06-05): the intro video has no sound (working properly with 9.0-4)
Proton logs: steam-1253190.tar.gz
Main error: 2666.769:0148:0390:err:dmo:demuxer_create_streams Failed to find H264 bitstream filter
Specs:
The intro video has heavy audio distortion when running this game with Proton 11.0 (beta-2) (no problems with Proton 10.0-4)
Proton logs: steam-1253190.tar.gz
proton 10.0-4x1 2026-04proton 11.0x1 2026-04proton experimentalx3 2021-06proton 6.3-4x1 2021-06WINEDLLOVERRIDES="mfplay=d"x2 2021-06WINEDLLOVERRIDES="mfplay=d" %command%x2 2021-06
Compatibility Report
System Information
I confirm:
steam-1253190-proton_6.3-4.log
steam-1253190-proton_experimental.log
Symptoms
Under the latest Proton stable (6.3-4) the game doesn't fully launch only showing it's launcher and an error message, the error message says the following; "DX11 feature level 10.0 is required to run the engine". After closing the error the game is killed.
Under Proton Experimental the game launches however it freezes after showing the introduction videos. Some (not all) introduction video's display as "TV test" images due to them requiring Microsoft Media Foundation.
Reproduction