Stranger in a Strange Land - 10 gamerpoints - Complete the Prologue.
Space Odyssey - 15 gamerpoints - Survive your first spacewalk.
Critical Mass - 15 gamerpoints - Recover the shuttle.
Snow Crash - 15 gamerpoints - Reach Tau Volantis.
Intestinal Fortitude - 25 gamerpoints - Defeat the Hive Mind.
Hydra - 15 gamerpoints - Kill the Snowbeast.
Together as One - 15 gamerpoints - Reassemble Rosetta.
Infernal Machine - 15 gamerpoints - Reach the Alien Machine.
Shoot for the Moon - 50 gamerpoints - Defeat the Moon.
Under a Buck - 10 gamerpoints - Shoot the deer head trophy in the Admiral's Quarters.
Space Ace - 20 gamerpoints - Shoot at least 70 targets during the ride to Tau Volantis.
Hungry - 20 gamerpoints - Reach the pump room of the Waystation without alerting any Feeders.
Drill Sergeant - 30 gamerpoints - Complete the Drill Room without taking any damage.
Weedkiller - 30 gamerpoints - Kill 5 Cysts in the Biology Building with a single poison gas cloud.
Aliens - 15 gamerpoints - Collect all Alien Artifacts.
Close Encounter - 10 gamerpoints - Kill 10 alien Necromorphs.