A suggestion (without even knowing nor owning the game): have you tried running it with PROTON_USE_WINED3D11 (as in right clicking on the game in the game list, then selecting Properties and then SET LAUNCH OPTIONS... and entering PROTON_USE_WINED3D11=1 %command% in the text box)? :crossed_fingers:
@pprotonrep - Thanks for your fantastically quick response and great suggestion! It works now!
I think Valve should make easy fixes like these automatically apply to games that need it in the steam library. This way, unsuspecting users wouldn't have to change anything to get the game to work on first launch. None the less, thank you and thanks to Valve for this awesome new open source feature!
Cheers!

Glad I could help! :bowing_woman:
I would leave the ticket open, though, for the proton maintainers to see that this specific game does not work with DXVK (for now).
The tip from @pprotonrep also worked for "The Flame in the Flood" in Kubuntu.
Hello @ShannonVanWagner, the behavior of this game may have improved with Proton 3.16-2 beta.
ASTRONEER game on Proton 3.16-7 has the same problem:
DX11 feature level 10.0 is required to run the engine
Running by PROTON_USE_WINED3D11=1 %command% solve the problem.
But Steam Windows version running on wine-devel 4.2 (without any manual configuration - may be it use wined3d11 by default) work successful.
OS: Ubuntu 18.10
Hello @kisak-valve. System Information. Vulkan is not installed.
Thanks @agarb7, by default Proton uses DXVK which translates D3D10/11 to Vulkan, so you need to sudo apt install mesa-vulkan-drivers mesa-vulkan-drivers:i386 and give https://github.com/ValveSoftware/Proton/wiki/For-AMD-users-having-issues-with-non-OpenGL-games a read for your Southern Island chipset.
Upstream wine is not affected because it always uses the D3D10/11 to OpenGL render path.
This tip from @pprotonrep also works for Terminator Resistance
OS: Slackware 15
Linux version: 5.15.117
NVIDIA driver: 535.104.05
Steam Version: 1700160213
Steam Client Build Date: Thu, Nov 16 1:23 PM UTC -08:00
Steam Web Build Date: Thu, Nov 16 1:06 PM UTC -08:00
Steam API Version: SteamClient021
Proton: 1699978268 experimental-8.0-20231114c
System Info:
https://gist.github.com/EpicureanGit/9e757e37b20ed10eff8271c0112dcf70
Steam Runtime Diagnostics:
https://gist.github.com/EpicureanGit/19b9a3ec029894b46dabb793231146d2
PROTON_LOG for Tracks:
https://gist.github.com/EpicureanGit/9a0d91a1f3bae920cfa4b5f13d1046af
PROTON_LOG for Tracks using PROTON_USE_WINED3D11=1
https://gist.github.com/EpicureanGit/6bc853435835b56d9890e06f832d7205
Symptoms:
The game crashes immediately after clicking "PLAY" in the Steam client. I tried Proton Experimental, Proton 8.0-4, and Proton 7.0-6.
Reproduction:
Click "PLAY" in the Steam client.
Edit: updated to Slackware64 Current and the game works for me now.
proton 7.0-6x1 2023-11proton 8.0-4x1 2023-11proton experimentalx1 2023-11proton 3.16-7x1 2019-02proton 3.16-2x1 2018-10PROTON_USE_WINED3D11=1x3 2023-11PROTON_LOGx1 2023-11PROTON_USE_WINED3D11x1 2018-08PROTON_USE_WINED3D11=1 %command%x2 2019-02
Tracks - The Train Set Game starts then crashes with dialog "DX11 feature level 10.0 is required to run the engine"
Game store page: https://store.steampowered.com/app/657240
I'm thinking maybe if the game could work with DX9 then we'd be golden. At any rate I wanted to point out the issue.
Any workaround or fix would be appreciated!