Here is the full list of all 50 Mortal Kombat 1 achievements.
Komplete A Titan Battle
Unlock 10 Tower Endings
Obtain A Total Score Of 5,000,000 In Gateway Towers
Defeat The Final Boss Of An Invasions Season
Komplete 5 Unique Test Your Might Encounters
Unlock A Secret Fight
Reach Invasions Level 20
Use 10 Konsumables
Dethrone A King
Spend 10,000 Seasonal Kredits
Spend 10,000 Koins On The Shrine
Reach Invasions Level 10
Equip 3 Different Relics
Trade For An Item From An Earthrealm Shop
Survive An Ambush
Defeat A Major Boss In Invasions
Recharge A Talisman
Perform 10 Different Brutalities
Defeat A Mini Boss In Invasions
Komplete Chapter 15 Twice
Use A Talisman 10 Times
Reach Invasions Level 5
Use A Talisman
Equip A Relic
Perform 20 Different Fatalities
Komplete 100% Of Story Mode
Komplete 50% Of Story Mode
Trade For An Item From An Outworld Shop
Komplete 25 Unique Encounters
Perform 10 Different Kameo Fatalities
Komplete Cage Mansion Tutorial
Klear An Obstruction In Invasions
Komplete A Survival Encounter
Use 10 Different Kameo Characters
Forge A Talisman
Watch The Kredits
Play 5 Kombat League Sets
Perform A Taunt Without Being Interrupted During An Online Match
Spend A Total Of 1 Hour In Practice
Komplete A Klassic Tower With 5 Different Characters
Spill 5,000 Pints Of Blood
Komplete A Weekly Quest
Komplete 3 Daily Quests
Deal 10,000 Damage To Opponents
Change Your Kombat Kard Player Module
Komplete 5 Unique Encounters
Komplete The Basic Tutorial
Use A Key
Komplete Mastery With 1 Kameo Character
Komplete Mastery With 5 Kameo Characters