I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly checked on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly. You can follow me personally on Mastodon[External Link].
One of the people behind Project Hospital emailed in about the project, which aims to be a full hospital management sim much like Theme Hospital. Also, it's partially made on Linux.
I love seeing what people have been able to do with SteamOS and this might just be the most amusing. One dedicated gamer made their very own SteamOS tabletop car-cade to play DiRT Rally.
GOG have revived some more classic titles for Linux thanks to DOSBox! Battle Chess Special Edition which includes three games now supports Linux on GOG.
Rec Center Tycoon is another simulation game with a graphical style similar to Prison Architect and inspired by Theme Hospital. It looks good and it's coming to Linux.
Serious Sam 3 VR: BFE is another Virtual Reality title with same-day Linux support from Croteam, so those of you with expensive headsets can make things go boom!
For those that don't remember, the folks that make the Solus distribution are working on improving Steam on Linux. They're doing so using their Linux Steam Integration project as a Snap package. They've now shown off some of the early efforts.