Here is the full list of all 58 Mortal Kombat 11 achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Komplete 125 Towers
Equip 5 different character intros
Perform 100 BRUTALITIES
Perform 2 different FATALITIES with Kitana
Perform 2 different FATALITIES with Kung Lao
Perform 2 different FATALITIES with Frost
Impale a head in the warrior shrine
Spear 50 hanging bodies in the Krypt
Perform 2 different FATALITIES with Jade
Perform 2 different FATALITIES with Jacqui Briggs
Perform 2 different FATALITIES with Erron Black
Perform 2 different FATALITIES with Kano
Equip 5 different character victories
Komplete the Novice, Warrior, or Champion Klassic Towers with 10 different kharacters
Perform 2 different FATALITIES with Kollector
Perform 2 different FATALITIES with D'Vorah
Perform 2 different FATALITIES with Raiden
Perform 25 BRUTALITIES
Perform 2 different FATALITIES with Skarlet
Perform 2 different FATALITIES with Geras
Perform 2 different FATALITIES with Noob
Perform 2 different FATALITIES with Cassie Cage
Use 100 konsumables
Play a Group Battle with 2 other players
Perform 2 different FATALITIES with Sonya
Perform 2 different FATALITIES with Jax
Perform 30 different FATALITIES
Perform 2 different FATALITIES with Cetrion
Perform 2 different FATALITIES with Scorpion
Komplete Story Mode
Use 50 Konsumables
Perform 2 different FATALITIES with Kotal Kahn
Open 200 Krypt chests
Perform 2 different FATALITIES with Johnny Cage
Komplete 50% of Story Mode
Perform 2 different FATALITIES with Kabal
Defeat an opponent as Bug-Vorah
Play 25 AI Battle Simulator sets
Run 5 miles in the Krypt
Spend 50,000 koins in the Naknadan shrine
Perform 15 different FATALITIES
Perform 2 different FATALITIES with Sub-Zero
Perform 2 different FATALITIES with Baraka
Show MERCY 10 times
Spill 10,000 pints of blood
Hit the Gong in the Krypt
Play 10 AI Battle Simulator sets
Perform 2 different FATALITIES with Liu Kang
Komplete a Novice, Warrior, or Champion Klassic Tower once
Reach The Kredits
Komplete all Advanced Tutorials
Flip Stance 50 times during a match
Duck 100 times during a match
Komplete all Basics Tutorials
Komplete all Strategy Tutorials
Play 50 Kasual Versus matches
Pay 100 total respect points in King of the Hill
Komplete 250 Towers