Complete Fort Solis.
Experience the alternate ending.
Collect all audio logs, posters, emails and banners.
Visit all locations at Fort Solis.
Enter the Greenhouse.
Collect all Video Logs.
Gain entry to the Ridge Tunnel.
Gain access to Officer Taylor's room.
Grant power to a door.
Take 3000 steps on the surface of Mars.
Complete the Ridge Climb.
Find compound 26.
Locate all crew members.
Locate the Generator in the Maintenance Unit.
Survive the Storm.
Escape the Medical Bay.
Finish the bottle of beer.
Take a shot at the pool table.
Interact with the punch bag.
Gain access to Nick Tout's broken Multi Tool.