


WINEDLLOVERRIDES="wininet,winhttp=n,b" %command%
https://steamcommunity.com/app/2131650/discussions/0/3943524562532474432/ MGSHDFix and Better Audio Mod used. Also had to download the missing XAudio2_9.dll but have read the Better Audio Mod fixes it by itself just wanted to be sure though.
XAudio2_9.dll is required to hear any audio
XAudio2_9.dll required to hear any audio but besides the borked audio it played great.

WINEDLLOVERRIDES="d3d11=n,b" %command%
Used the mods MGSHDFix and MGS3MC Better Audio Mod. Haven't tried without them.
The game froze and crashed multiple times throughout my playthrough, and I am not sure why. Maybe it's because my old hardware? If you have problems, try to remove mods and/or lowering resolution.

after fixing the audio, I played the whole game from start to finish without any issues.
To fix the audio issues (no audio in pre-rendered cutscenes, some ingame audio broken / distorted / absent) I had to copy the file "XAudio2_9.dll" (with this exact upper- and lowercase letters in the file name) in the 64 bit version and file version 10.0.17763.1 into the game install folder where the "METAL GEAR SOLID3.exe" is. After that, NO launch parameter is needed, starting the game as usual instantly has all sound working.
works fine.

I had no audio and needed to locate x_audio2_9.dll and install it in the root folder. Completed the game fine afterwards.
WINDLLOVERRIDES=“xaudio2_9=n; d3d11=n,b” %command%
Had to track down x_audio2_9.dll for audio.
Absolutely no audio OOTB. Had to be fixed via installing x_audio2_9.dll.
This seems to be a window unversially across MGS3 - as the alt-tab mod is for Windows as well.
Your mileage may vary.

WINEDLLOVERRIDES="d3d11,xaudio2_9=n,b" gamemoderun %command%
Voice is completely broken in Codec and cutscenes out of the box (Nice Deck support, Konami...). While installing the "MGS3MC Better Audio Mod" fixes the sound, the game will occasionally crash for some reason. You still need to grab the x64 "XAudio2_9.dll" from Windows installation and place it in the same location as the game executable, then adding the "xaudio2_9" to WINEDLLOVERRIDES.
Game does not support anything above 1080p. Installing the MGSHDFix allows running the game on native screen resolution. This game also can't run above 60 FPS, and they finally added the built-in FPS locker on latest updates. Do not disable the framerate lock, this will break the game speed.
Game will try to focus itself on every GNOME workspace. Installing the MGSHDFix allows the game window to run in borderless fullscreen, eliminating this issue.
Game runs well and is enjoyable after applying all the necessary fixes. Input from controller works without any problems, keyboard+mouse not tested.

No audio, but was fixed using MGS3MC Better Audio Mod.


WINEDLLOVERRIDES=“xaudio2_9=n” %command%
https://www.gamingonlinux.com/2023/10/heres-how-to-fix-metal-gear-solid-2-and-3-on-steam-deck-linux/
Since 29/01/2024 Game receive an update with deck support and is deck verified. Everything works fine at 60fps so far. Hope it helps.

WINDLLOVERRIDES="xaudio2_9=n" %command%
You need the audio fix
Will momentarily freeze on a frame while the game still runs. Only every once in a while. Might be a sway or qtile issue. Goes away after a few seconds to a minute. Otherwise runs fine

WINEDLLOVERRIDES=“xaudio2_9=n” %command%
No audio upon game start, but audio exists just fine in the first menus. However, due to lack of what seems to be proper audio .dll (that would normally exist in a Windows machine), the game crashes.
Once you alt+tab, you can't return to fullscreen without restarting the game.
You need to get a file called "XAudio2_9.dll" from a Windows installation (in the Windows/system32 folder) and paste it in the same folder that "METAL GEAR SOLID3.exe" is in (I attempted to try one I found online but it did not work). Otherwise, there is no sound when starting game and the game inevitably crashes.

WINDLLOVERRIDES=“xaudio2_9=n” gamescope -H 1920 -h 1920 -r 60 -f -- %command%
Had to put xaudio2_9.dll on the same folder as the game exe. This thread explains it https://github.com/ValveSoftware/Proton/issues/7192. Also had to use gamescope to being able to play on fullscreen.
Had to use Gamescope to achieve fullscren
The k&m controls are pretty much unplayable

Same as MGS2 - no audio in initial 2D cutscene, game crashes right as the 3D section should begin

Game Crashed after difficulty selection
Menus are fine, opening sequence starts then the game crashes

Does not enter game, requires external frame cap
mangohud %command%
Menu works fine, and once capped at 60fps speed in the actual game menu is fine, however crash to black upon starting. Tried multiple Proton versions. No helpful Steam logs, either.

Game starts, gets to first screen, closes
WINEDLLOVERRIDES=Engine,sdkencryptedappticket64,UnityPlayer=n,b %command%
Borked