Mothership

Mothership is a sci-fi horror roleplaying game where you and your crew try to survive in the most inhospitable environment in the universe: outer space! You'll excavate dangerous derelict spacecraft, explore strange unknown worlds, exterminate hostile alien life, and examine the horrors that encroach upon your every move.

Mothership is designed from the ground up to be intuitive to run and easy to play, no system-mastery required. Mothership's simple d100 Panic Engine ensures that you always know how likely you are to succeed at any given task (not very).