If the game doesn't work, double check these instructions.

1). Intall wine and winetricks Wine: https://wine.htmlvalidator.com/install-wine-on-ubuntu-20.04.html Winetricks: https://wiki.winehq.org/Winetricks

2). Install and run Sword of the Stars on steam with default latest Proton (this could change, I use 7.0-1). NOTE: This first startup will fail but this game appears to build files on first time startup that I like to have present before applying any fixes. Close the game after.

3). Run this command but replace 'yourname' with the your profile in /home directory. Make sure there are no spaces anywhere in this command.

WINEPREFIX=/home/yourname/.steam/steam/steamapps/compatdata/42890/pfx winetricks d3dx9

4). Go to the game installation folder. Copy and Paste sots.gob and sots_local_en.go to your /home directory (NOT /home/yourname). NOTE: DO NOT DELETE these files in game directory after coping to home directory.

Great game. A great mod to use for the game is BSOTS.