Mortal Sin, a Melee - Roguellike with great visuals and a dev that cares a lot.

ΔV: Rings of Saturn, a hard-scifi 2d asteroid mining game. Great to relax to, a nice community and a great dev, linux native!

Deadlink, a Roguelike arena shooter, tight controls, pretty hard for an aging man like me, but i still like it, even if it puts me in my place regularly lol