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Cake day: November 1st, 2023

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  • Set both games to Proton Hotfix as the compatibility layer in the Steam properties for each game.

    Acquire a 64-bit copy of xaudio2_9.dll.

    Place that dll in /home/deck/.local/share/Steam/steamapps/common/MGS2/ for MGS2 and /home/deck/.local/share/Steam/steamapps/common/MGS3 for MGS3). Make sure it’s called exactly “xaudio2_9.dll”.

    Go to the Steam properties for MGS2 and in the launch options field write:

    PROTON_HEAP_DELAY_FREE=1 %command%

    Go to the launch options for MGS3 and write:

    WINEDLLOVERRIDES="xaudio2_9=n" %command%

    They should now be playable.

    Note: there’s only one cutscene in MGS3 that I’ve run into that crashes, and that was fixed upon redoing the scene. You could use the same command as MGS2 to be “safe”, but it doesn’t seem to be necessary.