Full list of all 74 Injustice 2 achievements. It takes around 120-150 hours to unlock all of the achievements in the base game on Windows.
The base game contains 65 achievements, and there are 9 DLC packs containing 9 achievements.
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
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