Someone on protondb is reporting that this game crashed for him when he selected starting new game, though I note he was using Mesa drivers.

Yeah, it seems that it has something to do with Mesa drivers. Nvidia it is perfect.

System Information

• GPU: RX VEGA 56
• GPU Driver: Mesa ACO 19.1.0+aco+git1564433637-5c6077221dd-1bionic2 (Valves PPA)
• Kernel version: 5.2.5-050205-lowlatency
• Distro version: Linux Mint 19.1 Tessa (64 bit) (Cinnamon Desktop)
• Proton version: 4.11-1
• System information: system_info.txt

Compatibility Report

As of Proton 4.11-1 game works perfectly out of the box, no crashes.

• Good performance, solid 60fps at all times
• Nintendo Switch Pro controller worked
• Windowed, Fullscreen and Borderless mode works
• Switching between desktop and the game works

With Proton 4.2-9 and 3.16-9 and the game still crashes. So I think actually the crashing issue was Proton related and not the Mesa drivers.

I also tested with D9VK on Proton 4.11-1 and with that the game crashes directly on launch. This game is as far as I know is a DX9 game, so maybe there is an issue with D9VK.

Logs of all of these tests:
steam-252350-D9VK-fail.log
steam-252350-proton-3.16-9-fail.log
steam-252350-proton-4.2-9-fail.log
steam-252350-proton-4.11-1b-success.log

System Information

• GPU: RX VEGA 56
• GPU Driver: 19.1.0+aco+git1566739320-db73bde35cc-1bionic1 (Valves PPA)
• Kernel version: 5.2.10-050210-lowlatency
• Distro version: Linux Mint 19.2 Tina (64 bit) (Cinnamon)
• Proton version: 4.11-3

Retest Compatibility Report

Game still works perfectly on Proton 4.11-3 out of the box.

With D9VK the game now crashes when starting a new game (both with ACO and LLVM) from the games main menu. So the difference with 4.11-3 is that with D9VK the game no longer crashes directly on launch as it did with 4.11-1.

steam-252350-proton-4.11-3.log
steam-252350-proton-4.11-3-d9vk-aco.log
steam-252350-proton-4.11-3-d9vk-llvm.log
system_info.txt

Whitelist Request

System Information

• GPU: RX 480
• Driver/LLVM version: Mesa 19.3.1/9.0.0 (ACO enabled)
• Distro version: Arch Linux
• Link to full system information report as Gist: My Steam info
• Proton version: 4.11-11

I confirm:

• [x] that pressing the Play button in the Steam client is sufficient.
• [ ] that runtime config options are necessary to run the game.
• [x] that no workarounds other than PROTON_* env variables are necessary.

Issues

• [x] I haven't experienced any issues.
• [x] There are no issues left open for this game.
• [ ] Although I consider the gaming experience equal to Windows there are remaining issues:

Notes

Did a playthrough of the game. Everything works as expected.

Hello @toalex77, you might get lucky trying something like taskset -c 0-15 %command% in the game's launch options and checking if the game runs reliably without reducing the cpu core count in the bios.

Hi, @kisak-valve. No luck with taskset, I have to put some core offline (4 is sufficient). Normally I do this from command line with something like this: echo 0 > /sys/devices/system/cpu/xxx/online

Hi, just an update: I've re-tested the game with latest Proton releases.
With 5.0-10 , Experimental, and also the unofficial Proton GE 5.21-GE-1) but without turning off some of the cores, the game continues to crash at launch. This time I've to turn off at least 13 cores.

Another update: after a while I've tested another time this game, and even with latest Proton versions, official and unofficial, the game continues to crash at launch unless I don't turn off some cores.
But this time I've also tried to apply the customization suggested from another user on ProtonDB: https://www.protondb.com/app/252350#S2081DDsoF

Setting the Windows version to "Windows XP", solves this issue and the game now starts without I have to disable any core.

Windows XP Compatibility solved this issue for me, thanks