The final release of Black Mesa, the re-imagining of Half-Life is coming close and Crowbar Collective want as many people as possible to test out the latest Beta build.
Probably one of the most interesting mixes of a Visual Novel and an RPG (and some dating sim stuff), Planet Stronghold 2 is full-steam ahead in production and a full Beta is now up.
The Zombie Panic! Team put out another update on the progress towards version 3.1, what's turned into a massive overhaul to many parts of the game as Linux support also comes in.
After getting a Linux Beta build back in December, the open-world space action and adventure game Starcom: Nexus continues getting polished up for Linux support.
Now that the huge update to Slay the Spire is live adding in The Watcher as the fourth character, Mega Crit Games have also updated their opt-in game engine upgrade Beta.
OpenTTD is a true classic, building upon what Transport Tycoon Deluxe started and expanding it across more platforms and keeping it alive many years later.
With Crowbar Collective enabling a Beta containing the full Black Mesa experience recently, it came with a major performance problem on Linux which now seems to be solved!
Nice to see even more game engines add Linux support. Flax Engine is one we covered recently, after they announced their plans to support Linux and now it has arrived.