As it turns out, the game files from the "Windows" version of Escaped Chasm can be made to work just fine on Linux, and I even went ahead and packaged it in a portable format: Flatpak.
To comply with your copyright, I have not published the prebuilt version, but instructions to build it locally are available at the following link: https://gist.github.com/Thesola10/0c89552488ef37b3c49fd75f1000d597
Tem, if you want to provide a Linux binary for the game, just ask me and I'll send the file
(I also did the same for Escaped Chasm)