Full list of all 74 Injustice 2 achievements worth 1,195 gamerscore. It takes around 150-200 hours to unlock all of the achievements in the base game.
The base game contains 62 achievements worth 1,000 Gamerscore, and there are 11 DLC packs containing 12 achievements worth 195 Gamerscore.
Reach level 20 with all characters
Knock an opponent into the Empire Theatre Arena Transition at 8:00pm
Harley must defeat Joker with the final hit coming from Go Night Night
Atrocitus must defeat Green Lantern with the final hit coming from a Meter Burn Life Drain
Beat an opponent online while they still have 90% health and you have 10% or less health remaining
Green Lantern must defeat Atrocitus with the final hit coming from Mechanized Assault
Be in the Batcave when all the Environmental Interactions are used
Doctor Fate must defeat any opponent with the final hit coming from Amulet of Anubis
Wonder Woman must win the match with the final hit coming from a Meter Burn Lasso of Truth
Supergirl must defeat Superman after connecting 20 Kryptonian Lasers
Scarecrow must defeat any opponent with the final hit coming from Schizophrenia
Joker must defeat Batman with the final hit coming from Not So Funny Is It?
Green Arrow must defeat Black Canary with the final hit coming from Target Practice
Firestorm must defeat Captain Cold with the final hit coming from a Meter Burn Molten Trap
Cyborg must defeat Robin with the final hit coming from Apokolips
Blue Beetle must defeat any opponent with the final hit coming from a Meter Burn Mandible Strike
Flash must defeat Captain Cold with the final hit coming from Time Changer
Captain Cold must defeat Flash with the final hit coming from Cryogenic Blast
Robin must defeat Batman with the final hit coming from a Meter Burn Assassin Strike
Swamp Thing must defeat Poison Ivy with the final hit coming from Green Kingdom
Cheetah must defeat Wonder Woman with her Meter Burn Blood Lunge
Brainiac must defeat any opponent with the final hit coming from Beta Strike
Sell a total of 250 pieces of gear
Complete 100 Multiverse events
Win 5 AI Battle Simulation matches
Play as Batman and send all Gotham villains through the Arkham Transitions
View all character endings in the Battle Simulator
Win a match with each villain
Poison Ivy must defeat any opponent with the final hit coming from Kiss of Death
Win a match as Deadshot without missing a shot (minimum 10 shots)
Bane must defeat Batman with the final hit coming from a Meter Burn Bane Bomb
Gorilla Grodd must defeat Flash with the final hit coming from Mind Control
Throw 3 kegs during a match with Gorilla Grodd at the Ace o' Clubs
Have the final hit come from the crocodile in Slaughter Swamp
Vote correctly 10 times in King of the Hill
Collect a total of 200 pieces of Common Gear, excluding shaders
Black Adam must win the match with the final hit coming from Orbs of Seth
Reach level 35 in Player XP
Open 100 Mother Boxes
Perform every Supermove
Complete 25 Multiverse events
Collect a total of 50 pieces of Epic Gear, excluding shaders
Batman must defeat any opponent with the final hit coming from Cape Parry or Cape Counter
Collect a total of 100 pieces of Rare Gear, excluding shaders
Complete Story mode after doing all alternate paths
Superman must defeat Green Lantern with the final hit coming from Final Flight
Complete 100% of Story mode
Aquaman must defeat any opponent with the final hit coming from The Beast Below
Complete 50% of Story mode
Duck 10 times in a row during a match
Black Canary must defeat any opponent with the final hit coming from a level 3 Canary Cry
Join a Guild
Knock an opponent into an Arena Transition 25 times
Perform 3 background bounces on the Empire Theatre background
Go 10 seconds of the match without being hit by your opponent
Knock an opponent into the Memorial Station Arena Transition at 4:30
Win 10 ranked matches
Win 50 player matches
Play 200 online matches
Dethrone a King 5 times in King of the Hill
Catwoman must defeat Cheetah with the final hit coming from Cat Call
Harley must dethrone an opponent in King Of The Hill with the final hit coming from Double-Trouble
Darkseid must defeat any opponent after summoning each Parademon at least once
Red Hood must defeat any opponent with the final hit coming from Gotham's Outlaw
Sub-Zero must connect 10 Klones during a match
Starfire must defeat any opponent with the final hit coming from Starry Night
Black Manta must defeat any opponent with the final hit coming from Speared and Seared
Raiden must summon Kidd Thunder during a match
Hellboy must defeat any opponent with the final hit coming from Final Resting Place
Atom must defeat any opponent with the final hit coming from an Atom Lunge
Enchantress must defeat any opponent with the final hit coming from Out of Body Experience
Win a match with each Teenage Mutant Ninja Turtle
Reach level 30 with any character
Complete any 3 categories in Advanced Training or Strategy Training