Chase down an assassin.

Find ten treasures

Save humanity throughout the galaxy from certain annihilation

Use the Omega 4 Relay

Hack a geth collective

Fully upgrade a weapon

Complete 5 missions discovered by scanning unexplored worlds

Visit 100% of the planets in an unexplored cluster

Gain the loyalty of the quarian

Successfully shut down the rogue VI in Project Overlord

Defeat 20 enemies with headshots

Find one treasure