


PROTON_NO_D3D11=1 %command%
game runs just like windows under opengl and experimental.

protontricks 674140 d3dcompiler_47
Very low fps when using the default DX11, switching to opengl massively increased the performance (went from barely hitting 60 to over 200)
Used protontricks to get the game to open properly (fix blackscreen), then switched to opengl for big perfomance boost, works as expected after doing those 2 things.

PROTON_NO_D3D11=1 %command%
Very minor; went away after a second or two
Screen was completely black for me the first time I launched. All I had to do though was put in those launch parameters, and ever since it's worked perfectly. DualSense's adaptive triggers even work, assuming you have it set up properly.

Capped to 45fps. Stable at Ultra settings.

Launching the game will open up the game in a black screen, just like others have noted. All that's required to fix this is to use Protontricks with the following command:
protontricks 674140 d3dcompiler_47
As noted above, the black screen issue can be fixed by installing the proper d3dcompiler dll (ideally via Proton/Winetricks). If you want, you can also disable DX11 by launching the game with the following command:
PROTON_NO_D3D11=1 %command%
This will drop you into the game with either DX9 or OpenGL as the rendering backend. You can pick either one in the options menu. I do highly recommend you use the d3dcompiler fix though, as DXVK is at its best when used with DX11.
Plays with high settings, still has 50-60 fps
40Hz refresh rate
This may just be a problem with the game itself though, since I also often get seemingly CPU related FPS drops on my desktop PC

It's a great game, and I would thoroughly recommend it. Having it accessible on Linux is even better.
I had to download this .zip file, extract in the bugsnax folder (the default folder steam opens when you open local files) and take the .dll file out of the extracted .zip file and paste into the default bugsnax folder.
Game is working 100% fine after verifying the files (which is odd since I've reinstalled the game multiple times.)
Used to work, no idea what happened.
I capped the steam deck frame rate at 40 fps for better battery performance. Weirdly, lowering graphical settings actually made battery life worse
Game launched with black screen, which was fixed with a single Protontricks command. Completed the game without any issues afterwards.
Black screen fixed using the following Protontricks command:
protontricks 674140 d3dcompiler_47
PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%
It is necessary to disable DX10/DX11 to bypass the black screen.

It seems KB/M work alright, but if you prefer to play with a gamepad, it may not work well for you.
PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%
Regardless of how I map my controller in Steam or in the game menu, the controls are mapped to the wrong buttons (A and B both function as A, X functions as B, etc.)
There really isn't much to say here. I got full 60fps 95+% of the game. It ran smooth, the controls were great. Seriously no issues at all. Great game for the Steam Deck
Black screen on start (but there's a workaround)
On my Steam Deck, Bugsnax worked flawlessly without having to do anything.
On my desktop, Bugsnax had a black screen on start.
Apparently, it needs d3dcompiler_47.dll
, which is likely already in your Steam directory somewhere for another game (you can do a search in your file manager --- the one you need is a Windows native DLL, so it's a few megabytes, not the Wine one which is only 376 kilobites).
Open Bugsnax's directory from Steam by selecting the game's properties, then "Local files", then "Browse..." and copy the native Windows DLL there. (The file should be copied into ~/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Bugsnax/
for a Flatpak Steam install).
After I did this, Bugsnax worked on my desktop too without having to set any variables or selecting any other runtime.
Depending on the files installed and your Steam setup, it might just work out of the box. Or you might get a black screen on start (like I did with my AMD system with a 6700 XT GPU). At least there's a somewhat easy workaround by copying a DLL into the game folder.
PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%
You need to disable DX10 and DX11 to get the game to not launch to a black screen, after which you can go into the settings and change the renderer to DX9 or OpenGL and remove the launch option. OpenGL runs much more smoothly but seems to lose some of the fancier lighting effects.
PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%
there was no mouse input on proton 6.3-8 so I switched to GE-Proton 7-14 and it worked flawlessly
Controller support works great, everything works great, just don't use proton 6.38 if you want mouse support. No bugs or lag or anything. Managed to finish the game without any issues.
PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%
Plays great with steam launch command. PROTON_NO_D3D11=1 PROTON_NO_D3D10=1 %command%

Crashes every 20 minutes or so