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