Collect 75% of all relics.

Complete the game.

Kill 40 enemies with the shotgun.

Perform 50 headshot kills in the single player campaign.

Force an enemy to drop dynamite that kills two people when exploding.

Purchase all skills in one category.

Complete the game on Easy

Kill 35 enemies with the pistol.

Kill 50 enemies with the bow.

Complete one challenge.

Complete one optional tomb.

Kill and loot 10 large animals (deer, boar, wolves).