I've been informed that the game runs well with a wrapper for Linux -- I'm not sure about what's involved, but that may be an option!
Viewing post in The Crimson Diamond FULL GAME comments
No need for any wrappers, the game runs natively on Linux. Take a look at this and let me know if you need any help: https://itch.io/t/4016389/play-ags-games-on-linux-natively
And congrats on the release!