Hi, I got the Linux version through the Ukraine bundle, but I can't run it because it requires libsteam_api.so.
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It's not on your end. It just locks up on a black screen after the photosensitivity splash screen fades out, hogging up some 85% of my CPU (Ryzen 3700x) until I kill the process. I did leave it running for a couple of minutes in case it was just precompiling some complex shaders or something, but no luck. Couldn't get any useful debug output out of it either. I guess I'm giving up for now.
The game looks like something I might enjoy, so I'll definitely keep an eye out for updates. Let me know if I can help with testing.
I was able to get it to work (at least for the five minutes so far that I've played it) using Proton with the following steps:
1. Download and install the Windows build.
2. Add it to the Steam launcher as a non-Steam game.
3. In Steam, right-click on the entry and select Properties.
4. Edit 'TARGET' to point to SCU.exe and "START IN" to the installation directory. (This may have been done for you automatically but I had to go back and do it by hand.)
5. Select "Compatibility", check the "Force the use..." checkbox and select "Proton 6.3-8". (Other versions may work as well or better; YMMV.)
6. Launch the game from Steam.
The one thing that doesn't work is the menu backdrop. That's apparently a video playback issue in Proton. Other than that, I was able to walk around the mall pretty well.
I also tried it using stock wine (Ubuntu 20.04, Wine 5.0) and it runs (including the video, oddly enough) but a lot of the textures are missing during play.