Complete the following achievements to unlock Xbox Live Gamerscore points. Note: Enabling cheat codes has no effect on unlocking achievements.

Achievement	How to unlock
Central Shaft Survivor ( 35 points )	Completed the central shaft in the Lost Island without dying.
Croft Manor ( 20 points )	Completed all challenges in the Croft Manor.
Croft Manor Speed Run ( 30 points )	Complete the Croft Manor Time Trial.
Easy Game ( 20 points )	Complete the game on Easy difficulty.
Egyptian Seals ( 35 points )	Collected the seals of Anubis, Hours, Isis, and Osiris without dying.
Egyptian Speed Run ( 30 points )	Complete all the Egypt Time Trials.
Egyptian Tomb Raider ( 40 points )	Collect all the artifacts and relics in Egypt.
Gears of Doom! ( 30 points )	Completed the Peru gear puzzle without dying.
Good Show in Egypt! ( 35 points )	Complete all the Egypt Super Actions without fail ( first try).
Good Show in Greece! ( 35 points )	Complete all the Greece Super Actions without fail ( first try).
Good Show in Peru! ( 35 points )	Complete all the Peru Super Actions without fail ( first try).
Good Show on Lost Island! ( 35 points )	Complete all the Lost Island Super Actions without fail ( first try).
Greek Speed Run ( 30 points )	Complete all the Greece Time Trials.
Greek Tomb Raider ( 40 points )	Collect all the artifacts and relics in Greece.
Hard Game ( 45 points )	Complete the game on Hard difficulty ( includes Easy and Medium Game achievements).
IRON Raider in Egypt ( 40 points )	Complete Egypt without dying.
IRON Raider in Greece ( 35 points )	Complete Greece without dying.
IRON Raider in Peru ( 35 points )	Complete Peru without dying.
IRON Raider on Lost Island ( 40 points )	Complete Lost Island without dying.
Lightning Never Strikes Twice ( 30 points )	Completed the Hephaestus room in Greece without being struck by lightning.
Lost Island Speed Run ( 30 points )	Complete all the Lost Island Time Trials.
Lost Island Tomb Raider ( 40 points )	Collect all the artifacts and relics in Lost Island.
Medium Game ( 25 points )	Complete the game on Medium difficulty ( includes Easy Game achievement).
Peruvian Speed Run ( 30 points )	Complete all the Peru Time Trials.
Peruvian Tomb Raider ( 40 points )	Collect all the artifacts and relics in Peru.
Slayer I ( 30 points )	Defeat the T-Rex without dying ( Peru).
Slayer II ( 30 points )	Defeat the Twin Centaur Bosses without dying ( Greece).
Slayer III ( 30 points )	Defeat the Torso Boss without dying ( Lost Island).
Slayer IV ( 40 points )	Defeat Natla without dying ( Lost Island).
Weapon Master I ( 10 points )	Collect the Magnum weapon.
Weapon Master II ( 10 points )	Collect the Uzi weapon.
Weapon Master III ( 10 points )	Collect the Shotgun weapon.