Quickly played through Linux Jank while waiting for my bathroom to dry after I mopped it. Took me 30 minutes. It is a Doom 2 mapset that was entirely made in the Linux oriented Eureka level editor (the favourite Ultimate Doom Builder has been built using Mono on Linux, but it is far from a supported platform).
https://doomwiki.org/wiki/Linux_Jank
While in the mood, I also decided to check out the latest release of Blasphemer from February. Graphics are coming along nicely, although the sound design leaves something to be desired. I kind of like them giving new life to older Freedoom sprites though.
EDIT: honestly, it is the lack of sploosh sound when landing in water that is taking me out of it the most. 😛
I would also honestly suggest they make the yellow and green keys a bit more distinct for those of us who are red-green colourblind.