I tried on linux, and at it first it wasn't running because of .NET. After some fiddling, I managed to launch the game but even tho I can listen to it, I get a black window. Terminal says a file is missing (possibly hardcoded?) tho I'm not entirely sure that's the reason I can't see anything... I know it probably doesn't help much in regards to the jam but here's what I see missing:
WARNING: FILEIO: [/home/dylz/Documents/Programming/GMTK26/src/Jam/Content/Generated/atlas_0.png] Failed to open file