You have to install .Net Core and then open the Game using it. Also try the command 'dotnet "Those Spacecrafts.exe"' in the download folder. If you still need more help, I can compile a Linux, Framework independent version
thank you very much it's now working right of the box. i didnt have to what you just posted above, but thanks for giving that instructions anyways
I noticed something while playing, that asteroids if you don't shoot them can be used as shields if you stay in or on them.
Also it's clear the space ship has no inertia when you are moving it around with asdf keys.