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