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Added a fix mod for the game and changed launch options. Game runs completely fine. Better than Windows.
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Installed a fix mod for the game and applied launch options
Initially had the "updating executable" issue as well as the crash during the intro. Figured it out!
Used this mod https://www.nexusmods.com/prototype2/mods/42?tab=description and set the refresh rate to 120hz in the prototype_fix.ini
Using Xbox Elite Series 2 in bluetooth mode with xpadneo-dkms the controller was not detected until I disabled Steam Input. Afterwards it works perfectly.
In order to fix the "updating executable" issue I had to entirely uninstall the game, then search my Steam Library folder for "115320" (the games App ID). Anything that was found relating to this number I deleted.
As I'm using the flatpak version of Steam, I also went into my /home/user/.var/app/com.valvesoftware.Steam folder and did a search for "115320" and "Prototype", removing all traces there as well. Then within Steam I set up a new install directory for installing only Prototype 2 (Steam -> Settings -> Storage). Make it different to where it was installed previously.
After it downloads, don't run it yet. Instead, download this mod ( https://www.nexusmods.com/prototype2/mods/42?tab=description ), follow the directions and paste the 4 files in the Prototype 2 install directory. Make sure your Proton version is set, and run the game.
It should launch perfectly on the first go!
The game doesn't launch
ROTON_NO_FSYNC=1 DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
The game simply refuses to start, regardless of Proton version or launch commands.
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Game does not scale to 4K. Full HD is maximum.
Game crashed before getting to the menu when given the option to utilize more than 8 cores.
Game needs to be limited to access no more than 8 cores to be playable. Afterwards no major problems.
ROTON_NO_FSYNC=1 DXVK_FRAME_RATE=60 taskset -c 0-7 gamemoderun %command%
runs very good (since I switched from nvidia to AMD gfx)
PROTON_NO_FSYNC=1 DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Launch options per CPU.
I had maybe 3-4 crashes for two whole playthroughs so it works better than on windows back in the days
proton_no_fsync=1
you need to play with proton_no_fsync=1 to finish one of the first missions
The game runs about as great as it did on Windows, which isn't saying much, but still good for us!
This game was never stable, even running on Windows where it is natively "supported" as you'd frequently have issues with the game crashing and needing to be set to single core. On Linux, the game runs about as well, although I didn't notice any crashing, I'd have to sink in several more hours before I could say for certain that this game is more stable on Linux than on Windows. For now, it's just as stable as Windows.
I capped the game at 40 FPS to save battery
Thanks to another player I got the game stabilized by adding launch options: PROTON_NO_FSYNC=1 DXVK_FRAME_RATE=60 taskset -c 0-3 %command%
the proton_no_fsync=1 was crucial to me getting past a save point early in the game in the flytrap mission.
PROTON_NO_FSYNC=1 DXVK_FRAME_RATE=60 taskset -c 0-3 %command%
I set the DXVK_FRAME_RATE to 60 just for personal preferences. With these configs, I was able to play for 25 hours and get all achievements without a single crash.
Interestingly, I couldn't be able to run this game on Windows. On Linux with minor tweaks it works like a charm.
taskset -c 0-7 gamescope -h 1080 -H 1080 -r 60 -f %command%
Running with Gamescope fixed the problem
You should limit your FPS to 60 via DXVK or Gamescope. Also you should limit CPU threads to 8(7 counting from 0).
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
crashed after a long time.
i needed to download a community "fix" (BLACK Screen & Loading screen [FIX]) steam discussion topic for those needing the files. since the steam version lacks the files to actually work out of the box.
to enjoy playing this game, one must be able to get the game to even start. once the user does the job that the devs should have done years ago. actually including working files... it ran pretty well overall. messed around eating people and tormenting the populace like a psycho for a while, and probably an hour or two in, the game crashed. does not work without the command.
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Some texture issues on the tendrils when consuming, everything else was perfect
3-4 crashes throughout the entire 100% playthrough. The game autosaves frequently so not much progress is lost if it does crash.
Thanks to the Linux commenters below for the startup command to get this working.
Played through to 100% completion, though I would only recommend if you are very determined to play this on steam deck.
PROTON_LOG=1 DXVK_FRAME_RATE=60 taskset -c 0-11 %command% resolution=2560x1440
Game engine's fault
Make sure that you are using the proton-6.21-GE-2, since on some occasions when entering the lairs using the latest version caused the game to crash
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Core limit required
Does not launch for me whatsoever. Tried every avaliable proton version to no avail. Shame.
Tried every possible proton version
Does not launch/crashes on startup.
You start off with lower resolution and settings when starting for the first time, but max settings at 800p won't hold a stable 60 fps (floats between 50-60 a bit when much happens on-screen), either lower the fps-limit (like 40 or 50) or lower the settings. Didn't crash once for me.
DXVK_FRAME_RATE=60 taskset -c 0-12 %command%
with DXVK_FRAME_RATE=60 taskset -c 0-12 %command% added to the launch options and steam set to proton experimental it works perfect with my setup , could play the entire game from start to finish without any hickups
Works great but you need a compatible version. My "Prototype 2 + Radnet Retail (RU)" Steam cd key was not working, black screen on start & crash. I removed it from my account and took the game directly from Steam. It's a different package and this one is working without any issue
Tested wiith proton GE 7-14 & 7-15 & experimental. Starts, black screen for a frame & crash
DXVK_FRAME_RATE=60 taskset -c 0-12 %command%
you need to limit your fps to 60 to fix the claw pounce bug using this command DXVK_FRAME_RATE=60 %command% or vsync if you have a 60 hz monitor.
to fix the claw pounce bug you have to limit the fps to 60 or less either with vsync or with DXVK_FRAME_RATE=60 %command%. or DXVK_FRAME_RATE=60 taskset -c 0-12 %command% if you also have more than 13 cpu threads. at no ther point do you have to limit the fps. limiting the cpu to less than 13 is also fine. i dont think the game uses more than 4.
Has crashed a few times when alot is going on. Most have been after using the first special mass ability. Game auto saves really well so worst case, redoing part of a mission.
DXVK_FRAME_RATE=60 taskset -c 0-7 %command%
Claw Pounce Bug is fixed by limiting the game to 60 fps. the game wont launch with over 8 cores.
its an old game with some issues but easy to fix compared to windows.
DXVK_FRAME_RATE=60 taskset -c 0-4 %command%
Depending on the Area there are some dips in Framerate
Because of the constant autosaving the crashes are not that bad, though a bit annoying
taskset -c 0-7 %command%
slight performance hit. probably caching shaders
Game runs very well. Even when you are doing ALOT, and the screen space is filled with effects, it runs over 30fps.
DXVK_FRAME_RATE=144 taskset -c 0-7 %command% resolution=2560x1440
Rare Crash
Needs a launch arg to limit cores to less than 8
Played 25% off the game on windows; I'm currently at 33% on linux. Operation Flytrap works without needing the fix from Windows (so far)
DXVK_FRAME_RATE=120 taskset -c 0-7 gamemoderun %command%
If your CPU has more than 8 cores it will start freaking out. Outside of this you don't need any thinkering. Just limit the FPS to your screen hz.
DXVK_FRAME_RATE=60 taskset -c 0-4 %command%
Pretty certain this game deserves a higher rating now, runs fine with the tweaks applied.
Runs Great, needs to be limited to 60fps otherwise the engine has weird issues and needs to be limited to 4 cores otherwise it does not run
DXVK_FRAME_RATE=60 taskset -c 0-4 %command% resolution=3840x1080
Limited the frame rate with "DXVK_FRAME_RATE=60" if you don't it runs at a maximum of 500fps but with terrible frame times. Limited to 4 cores with "taskset -c 0-4" game has issues with more than 4 cores if you don't do this it will crash just after the intro screen. For ultra-wide users or other nonstandard resolutions you need to add "resolution=WxH"(replace W with your screens width and H to your screens height) to set desired resolution. Every issue i have shown isn't an issue to do with wine or linux as they exist on windows aswell, this game just has a terrible pc port, but with these commands it runs great.
Games runs great for the time played
Can't really speak on long term stability, but the fact that the game runs at all without jumping through illegal piracy hoops is good enough for me. Latest version of GloriousEggroll was used, latest version of Proton may or may not work depending on your version.
Using the newest Glorious Eggroll Proton Version, Issues with Media Foundation and CEG are finally fixed.
Proton-6.19-GE-2 GloriousEggroll
Installed GloriousEggroll's custom Proton-6.19-GE-2 into Steam, using instructions on the github page, then restarted Steam. Replaced the file prototype2engine.dll in the game install directory for the DRM fix. (Not cracking this causes the game to just not launch)
It requires a bit of tinkering, but once everything is set it works flawlessly in my experience
6.16-GE-1 GloriousEggroll
Glorious Eggroll proton and NODVD dll to remove the DRM
I tried the fix suggested in the other reports but I was able to get audio working only with GloriousEggroll proton latest version.
