Save your crew from an overwhelming attack

Return to active duty

Successfully recruit the biotic Convict

Successfully recruit the krogan

Successfully recruit Archangel

Successfully recruit the Professor

Successfully recruit the quarian

Successfully recruit the Justicar

Successfully recruit the Assassin

Obtain geth technology

Defend a human colony from attack

Gain the loyalty of the Cerberus Officer

Gain the loyalty of the Cerberus Operative

Gain the loyalty of the biotic Convict

Gain the loyalty of the krogan

Gain the loyalty of Archangel

Gain the loyalty of the Professor

Gain the loyalty of the quarian

Help the Justicar resolve her mission

Gain the loyalty of the Assassin

Hack a geth collective

Complete the investigation of a derelict alien vessel

Use the Omega 4 Relay

Save humanity throughout the galaxy from certain annihilation

Survive suicide mission

Complete the game on the "Insanity" difficulty level without changing the setting

Keep your team alive through the suicide mission

Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1

Successfully pursue a relationship with a teammate

Perform 30 headshot kills with any weapon on humanoid targets

Shoot and kill 20 enemies while they're knocked back by a punch

Thresher Maw defeated

Hit 20 different targets with multiple biotic powers to combine the effects

Kill enemies with 5 different heavy weapons during the game

Make 20 enemies scream as they fall or are set on fire

Disrupt the shields of 25 enemies

Warp the barriers of 25 enemies

Incinerate the armor of 25 enemies

Complete a mission discovered by scanning an unexplored world

Complete 5 missions discovered by scanning unexplored worlds

Retrieve mineral resources by scanning and probing a planet in the galaxy map

Visit 100% of the planets in an unexplored cluster

Reach Level 30 with one character

Unlock 15 new Mass Effect 2 codex entries

Obtain 10 technology upgrades

Fully upgrade a weapon

Complete any research project in the Normandy's laboratory

Personalize your armor in your quarters on the Normandy

Evolve any power

View all advanced combat training videos at Shepard's private terminal.

Gain the loyalty of the mercenary

Use all information terminals in the Shadow Broker’s stronghold

Defeat the Shadow Broker’s Assassin

Confront the Shadow Broker

Complete the Shadow Broker Mission pack on Hardcore or Insanity

Reminisce with Liara on the Normandy

Complete the Arrival DLC pack

Survive all five waves in the battle for Object Rho

Rescue Dr. Amanda Kenson without attracting hostile attention

Collect 6 Cerberus data packets scattered across Aite

Successfully shut down the rogue VI in Project Overlord

Gain the loyalty of the thief