http://routinegame.com/
Survival horror set on a Moon base. Based around 80's designs for space flight/colonisation.
No hud, no health kits and perma death.
http://youtu.be/d9XrsWUO9sw
This game is on Steam Greenlight and needs votes to appear on the Steam store. Although it looks awesome enough that hopefully it'll get there on it's own merits.
Can't see anything particularly else interesting on Greenlight, saw "Slender source"...
Implementing Youtube links is becoming increasingly rage around here.