Hello!
I have been working on getting Allied Nations working in WINE/Proton for linux.
I know a few of you reported incompatibility issues but I have solved the issue and will be working with Steam soon to get these fixes into Steam Proton so that Linux followers of Allied Nations can enjoy the game just as well as the Windows users.
I will also be publishing a guide to go along with this so you can run the game through wine as well if you do not want to use Steam Proton.
See yeah soon with more updates.
Alex Cooper~