Ha, funny timing, I actually just got this working yesterday.

I recommend going with OpenTyrian2000 rather than the GOG edition. It has some extra scaling options and music works out of the box.

Basic steps:

• download OpenTyrian and data files (in Github description) from github.com/KScl/opentyrian2000
• extract all to same folder. Data files should sit in same directory as OpenTyrian2000.exe
• (optional) if you have a Windows PC, you can try running it and it should start up normally
• assuming that’s all working, copy the files to your Deck
• add a new Lutris shortcut to existing game. I used latest Wine.
• test that you can run the game on Deck, it should boot and play fine with sound and all. Scaling options are in the OpenTyrian2000 menu option.
• (optional) on Steam side map escape key to start so you can pause the game if needed. All the other default keybinds seem to work though I did not test for long so others like weapon switching may need to be changed.

Hope that helps! Let me know if I’ve messed anything up or if it’s not working for you