Explore a lost city.

Attain the highest level of readiness in each theater of war.

Kill 1,000 enemies.

Complete three multiplayer matches or five N7 missions.

Complete one multiplayer match or two N7 missions.

Perform any combination of 50 biotic combos or tech bursts.

Destroy an Atlas dropped from orbit.

Set 100 enemies on fire with powers.

Kill 100 enemies with melee attacks.

Kill 250 enemies.

Learn more about the Prothean Empire.

Kill 10 guardians with headshots from the front while their shields are raised.

Visit a store in the single-player campaign.