Dwarf Fortress 

I've been playing some Dwarf Fortress Adventure mode while out and about this week and I'm just loving how simple yet complex it is and where there is to do in the game.
Playing the main mode is fun but at times can be stressful managing so many things while Adventure is just you and the world.

Theres an English remake of Black Sect 2 that's really neat, and there's a build for GNU/Linux. I love the idea of remaking older games to reach new audiences.

brocantygames.itch.io/black-se

Merveilles

Merveilles is a community project aimed at the establishment of new ways of speaking, seeing and organizing information — A culture that seeks augmentation through the arts of engineering and design. A warm welcome to any like-minded people who feel these ideals resonate with them.