Sadly, Morphite [Steam] has seen a delay with the Linux version. Thankfully, the developer was quick to respond and it's still coming.
Here's what they said about it:
Fair enough, can't argue with that. We all know a stable release that's actually been tested is better than a terribly buggy game.
I'm glad it wasn't cancelled, because it looks like an FPS game that I would probably quite enjoy, as I'm sure many would. It certainly doesn't look like "yet another FPS", it has a procedurally generated universe, platforming elements, research and exploration and plenty more.
About the game:
Morphite is a casual atmospheric FPS, set in a low poly stylized universe.
This is the story of Myrah Kale, a young woman whose life takes a sudden turn when a simple mission develops into an epic interstellar journey revealing her mysterious past and relation to a coveted substance called Morphite.
Myrah will voyage to the furthest corners of space and explore uncharted procedurally-generated planets, each with diverse landscapes and teeming with exotic flora and fauna. With the help of a scanner, Myrah will sell biological information for ship, suit and weapon upgrades.
Inside Myrah’s vessel, players will engage in random encounters with real-time space combat, trade with other travelers across the galaxy and navigate outer space with Morphite’s easy-to-use Starmap system.
Will keep you posted on what happens with it.