Mr. Prepper is a game about opposing the government who have apparently started making people disappear who don't obey them, so naturally you have to build some sort of fallout shelter.
Poly Universe is a pretty unique spin on the survival city-builder mix of genres, with multiple tiny planets that aren't much bigger than the colonists.
Klei have announced that the Don't Starve: Hamlet expansion that was announced in September last year, has moved to a December release. They've got a fancy new trailer though.
The Indie Stone are a few steps closer to getting vehicles into the stable build of survival game Project Zomboid, which should make the game pretty damn interesting.
Xenosis: Alien Infection is a top-down sci-fi adventure with horror and survival elements that's really coming together nicely. It will fully support Linux and it's now live on Fig. I've had access for a while and I love it.