If you want to try an FPS, the original Half-Life is amazing (if visually dated), and was designed to ease the player into the experience as opposed to something like Doom or Dusk that throws you into the action without any tutorials. I’m biased though, Half-Life is my favorite FPS of all time lol.

It goes on sale for around $2 regularly, which is a nice bonus. I second the Portal and Stardew recommendations of others too.

Shot in the dark, but does running the Windows software in Wine work?

Star Wars: Empire at War is a classic with more nontraditional gameplay and light 4x elements (no diplomacy). The modding scene is rich too, with Thrawn’s Revenge for the EU and multiple Clone Wars mods.

These suggestions rock, I guess my weekend is set!