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