Costumes...
	Steam Achievements...

Complete the indicated task to unlock the corresponding costume.

Lara's Biker outfit: Score 1,900,000 points in single player mode.
Lara's Doppelganger outfit: Score 2,400,000 points in single player mode.
Lara's Heavy Jungle outfit: Complete the game.
Lara's Jungle outfit: Score 1,410,000 points in single player mode.
Lara's Legends outfit: Defeat Xolotl.

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Friend in Need	Play co-op mode.
Beat a Better Mousetrap	Activate all of the spikes at once in the Spider Tomb spike field.
Breadwinner	Earn the top score objective in any level.
Instant Sushi	Vanquish the summoned beast in the watery depths.
Jump Jump	Jump from Totec's shield while he is jumping.
Leap of Faith	Catch Totec with the grapple while he is jumping over a death fall.
Overachiever	Complete any level-specific Reward Challenge.
Return to Sender	Reflect an enemy's projectile back to him using Totec's shield.
Seeing Red	Collect all 10 red skulls in any single level.
Three birds, one stone	Kill 3 enemies with one bomb.
Tomb Raider	Collect all relics, artifacts and weapons.
Vanquish Xolotl	Regain the Mirror of Smoke.