After some classic first-person shooter fun? Developer 'Scumhead' who works with the GZDoom game engine recently announced that Shrine, Lycanthorn and Lycanthorn II all now have Linux builds.
This makes grabbing them and playing them easier than ever, no need to mess about with setting up GZDoom manually or moving anything around. Currently it's only on itch.io but hopefully the Linux builds will hop over to Steam too sometime soon. Shrine is quite highly rated too, one we've talked about briefly here before when running it as a standalone.
Shrine is a really well made total conversion, where you battle a "nightmarish eldritch horde as Tusk, the skinless monstrosity" across nicely designed levels full of unique and strange weapons. If you do love classic Doom, Hexen and so on this is probably something you should check out with 16 challenging levels to explore.
Check them all out here if you love your FPS games:
The best part? They're all free to play but you can support the developer on their Patreon.