Save humanity throughout the galaxy from certain annihilation
Survive suicide mission
Incinerate the armor of 25 enemies
Use the Omega 4 Relay
Successfully pursue a relationship with a teammate
Hack a geth collective
Obtain geth technology
Gain the loyalty of Archangel
Gain the loyalty of the Assassin
Complete 5 missions discovered by scanning unexplored worlds
Gain the loyalty of the krogan
Thresher Maw defeated
Help the Justicar resolve her mission
Gain the loyalty of the quarian
Complete any research project in the Normandy's laboratory
Obtain 10 technology upgrades
Gain the loyalty of the Professor
Gain the loyalty of the biotic Convict
Warp the barriers of 25 enemies
Successfully recruit the quarian
Complete the investigation of a derelict alien vessel
Successfully recruit the Assassin
Successfully recruit the Justicar
Gain the loyalty of the Cerberus Officer
Disrupt the shields of 25 enemies
Visit 100% of the planets in an unexplored cluster
Complete a mission discovered by scanning an unexplored world
Defend a human colony from attack
Successfully recruit the biotic Convict
Successfully recruit the krogan
Unlock 15 new Mass Effect 2 codex entries
Evolve any power
Successfully recruit the Professor
Make 20 enemies scream as they fall or are set on fire
Personalize your armor in your quarters on the Normandy
View all advanced combat training videos at Shepard's private terminal.
Return to active duty
Save your crew from an overwhelming attack
Gain the loyalty of the Cerberus Operative
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
Perform 30 headshot kills with any weapon on humanoid targets
Shoot and kill 20 enemies while they're knocked back by a punch
Hit 20 different targets with multiple biotic powers to combine the effects
Kill enemies with 5 different heavy weapons during the game
Retrieve mineral resources by scanning and probing a planet in the galaxy map
Reach Level 30 with one character
Fully upgrade a weapon
Successfully recruit Archangel
Gain the loyalty of the mercenary
Gain the loyalty of the thief