


WINEDLLOVERRIDES="dinput8.dll=n,b",LD_PRELOAD="" %COMMAND%
changed refresh rate in graphics config to 'Variable'
moving the mouse causes horrendous stutter; LD_PRELOAD="" fixes it
lost some 20 frames per second
use the WINEDLLOVVERIDE if using IHHook

Works perfectly out of the box and maintains a consistent 60fps with relatively high settings
Lowered TDP down to 8W

changed refresh rate to 'Variable' to unlock FPS
minor audio skipping during cutscenes
Moving the mouse would cause horrendous stutter after approximately 1 hour of continuous playtime
Game crashes after the Chapter 1 screen due to a divison by 0 error when using Proton Hotfix [wine version 10 in the crash logs] - completely blocks progress past prologue
IHHook does not work

The game functions flawlessly, and I did not experience any issues!

TPP_GRAPHICS_CONFIG in your UserData:
"framerate_control" : "Variable",
Unlock your refresh rate!
This is not an issue for those who have not played yet, but users with previous save files might get an issue where you launch the game and are told that the game cannot save and to quit the game.
To fix this, delete your games /remote/ folder at steam/userdata/??????/311340/remote/, use Steam Offline Mode, run the game once, quit out, and then turn back on Online Mode. You should be fixed!
After the tweaks in this report, I was able to get steady performance on this game.

In order to get past the black screens with text, I had to install the mf.dll file like many others. I did this with protontricks. Everything solo has worked fine, including pve FOB events. I have not done pvp FOB invasions/defense and don't plan on it.
One of the cutscenes played itself 1 frame per second thereabouts. Other than that, it runs

Works well (singleplay)
Played with Proton 9.0-4.

echo 'SUBSYSTEM=="input", ATTRS{idVendor}=="31e3", ATTRS{idProduct}=="1322", ENV{ID_INPUT_JOYSTICK}=""' | sudo tee /etc/udev/rules.d/99-wooting-no-joystick.rules sudo udevadm control --reload-rules && sudo udevadm trigger If you have a Wooting and/or get the input "drift" issue
Great experience.
If you experience any sort of input drift (i.e. Up arrow being constantly held down, camera looking towards the sky) and you have a Keychron Keyboard (or any other keyboard that steam might think is a controller).
Fix Input Drifting
Add /etc/udev/rules.d/99-keychron-no-joystick.rules
SUBSYSTEM=="input", ATTRS{idVendor}=="3434", ATTRS{idProduct}=="0311", ENV{ID_INPUT_JOYSTICK}=""
You can find the idVendor and idProduct value of your keyboard with lsusb command then run
udevadm control --reload-rules && sudo udevadm trigger

The game thinks the up arrow is being pressed at all times.
This means menus scroll immediately to the top and if I manage to successfully get into character / camera view, the camera immediately looks to the sky and spins around and nothing can fix it.
I've tried running in bottles, Glorious Eggroll Proton, Proton Experimental, Proton Hotfix.
I've tried switching from Hyprland to Gnome.
I've tried running with and without gamescope.
Worth noting the bug goes away when I unplug my keyboard... however this does not render the game any more playable given I need a keyboard to play.
Can't see any errors that might be relevant to keyboard input in the game logs. (Viewed by running steam from Console)

Works like a charm although there are slight FPS drops when compared to windows. There was also an instance of audio glitch where the audio would crackle, slow and become out of sync with the cutscene.
Focusing on a different window than the game window has a chance to crash the game.

Installs and plays without issues
Occasionally controller inputys were not recognised, and required double pushes to take effect. I disabled Steam Input, after which the controller worked fine. It's a Stadia controller - thus X-box controller clone
But... I hate multiplayer . In this game you effectively have no choice if you want to progress. So my experience is being occasionally 'invaded'. Thankfully the game is old, so not much activity.
Four years ago I posted a report that this game worked with Proton version 6. I got bored with it and left. Coming back, at first it would not start with Proton version 9 (i.e. it would crash during graphics detection). Over a few weeks I kept trying (by removing the prefix and re-creating it with Proton 9), and one day it 'just worked'. Possibly a mesa upgrade fixed it - I just don't know. However, now works on Proton 9 for me, and performance is very good.

Cutscene after Prologue, Chapter 1 Text doesn't play correctly. Shows Test image on default configuration, crashes the game on ProtonGE.
Full motion videos don't play, show testplay on default settings, don't show up at all with ProtonGE
Full motion videos don't play, show testplay on default settings, don't show up at all with ProtonGE
NO game should have a platinum rating if anything doesn't work out of the box.

Game wouldn't start on proton experimental or GE-Proton 9-26, freezing on a black screen.

game thinks up arrow is being pressed at all times and therefore doesn't let me click Content terms of use accept button.
completely broken
If waking from sleep mode, game will run at 2x speed with higher pitched audio, most noticeable during cutscenes. Just remember not to put Deck in sleep mode when playing. Otherwise, runs and plays perfectly. I would also recommend enable gyro to function as right control stick. Doesn't offer 1:1 aiming unless you make further adjustments, but it can help with precision aiming once your reticle is close enough to your target.

sudo pacman -S winetricks; WINEPREFIX=./steamapps/compatdata/287700/pfx winetricks mf
black screen after "Chapter 1 Revenge" title. workaround is installing mf via winetricks
No Probs, Native running


Was blocked at the black screen just after the "Chapter 1" title display, by following the suggestion I've found online, installing Media Foundation DLL seems to have fixed the issue
The significant bugs was the black screen after the "Chapter 1" title

Cutscenes don´t work
Game freezes trying to load the first cutscene after Chapter 1 title

Legion GO
Bazzite, Nobara, CachyOS

Prerendered cutscene after the prologue does not play and game gets stuck. Proton 8.0-5 still does not play it but you are able to progress.
Everything else runs fine

The game stops working right after the prologue, freezing in a black screen when it was supposed to play the chapter 1 cutscene
Game freezes into a black screen after chapter 1 title screen
MANGOHUD=1 gamemoderun %command%
"Select the default wineprefix" > "Install a Windows DLL or Component" > install "mf" (MS Media Foundation" if the game freezes on a black screen after the "Chapter 1" text at after the Prologue score screen

Reduced FPS to 40
Just install and play. Great game.

Works right out of the box. And runs and plays extremely good. I only would have some odd camera bug once in a while when panning my camera around to check the surroundings or when on the move, but other than that, it works flawlessly.

Worked fine without any tinkering.

pre-rendered cutscenes either don't work on proton ge, play with a lot of crackling on experimental, and play too fast on proton. 9.0.3
switching to 8.0.5 helped resolve all of this, game works well so far

prime-run %command%
amazing experience, slight performance drops on some locations, nothing more
thank you Kojima for MGS.
Runs as perfectly as it does on Windows.
There are a couple of pre rendered cutscenes that won't play as it requires video codecs. Running it on ProtonGE doesn't solve this issue.

Inicia y funciona perfecto: Completado al 100%, 1080p, graficos(alta), control(xbox series), Proton=8.0-5/9.0-2/9.0-3/Experimental.
- Se ven todas las escenas, excepto una: Despues de el anuncio del Capitulo 1 > escena = (el recorrido hacia afganistan de Ocelot y Big Boss).
- Ver Imagenes en perfil de steam

Works as good as windows!
I've experienced absolutely 0 issues running this game.

11w TPD
A pre rednered cutscene directly after escaping the hospital was shown as colored bars. In game cutscenes aren't affected which is 90% of the rest of the game. I forced proton experimental and haven't seen it since, but I also don't think there's been a pre rednered cutscene since that point either.