In EACH spaceship there's 2 IMPOSTERS who will pretend to be the crew mates in order to KILL every one of the humans and prevent them from getting to the DESTINED PLANET. They all refer to each other by COLORS. There's an EMERGENCY BUTTON in the cafeteria were people call for a meeting and VOTE the IMPOSTER OUT throwing them off the SHIP. IMPOSTERS can VENT, Turn OFF THE LIGHTS, and MESS WITH THE REACTOR. IF ALL TASKS ARE FINISHED AND THE SHIP IS IN FULL MOTION THE IMPOSTERS HAVE FAILED.