The year is 2029, NASA has established a Moon Colony and has sent 2 manned missions to Mars in preparation of establishing a Mars colony in 2031. Tomine Reyes is sent on the third mission with 3 other astronauts to Mars when an anomaly regarding an unknown celestial body causes her and her crew to end up stranded on this strange world.
In Planet X, Tomine and her crew must work together to find a way off this world and back to Earth. Play through a branching story with multiple endings based on your choices. Planet X also features levels ranging from urban cities to barren deserts in which the player will have to survive, solve puzzles, and find a way home any means possible.