Rogue Singularity [Steam, Official Site] is a pretty cool looking infinite obstacle course platformer that has released into Early Access with Linux support.
I have to admit this actually looks quite decent, has anyone picked up a copy? If you do let us know how it runs!
About the game
Rogue Singularity is a third person precision platformer ideal for speedrunning.
The hazards of space and the singularity are many and ever-present, as you race to the end of each level in the fastest time possible.Take on the expanses of space alone, or race the ghosts of the best players in the world.
No level will be the same twice - each location in Rogue Singularity is procedurally generated for infinite replayability. Attain mastery and your name could be on the top of every leaderboard - your name will take pride of place at the start of every new level you complete. Your achievement will unlock the level for the online community1
Rogue Singularity Weekly Challenges give you one chance to finish the level and top the leaderboard. Are you the fastest robot survivor?