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