Full list of all 73 Mortal Kombat X achievements worth 1,500 gamerscore. It takes around 60-80 hours to unlock all of the achievements in the base game.
The base game contains 60 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 13 achievements worth 500 Gamerscore.
Reach personal level 65 in XP
Perform a 10 hit combo with every character
Reach level 50 in all factions
Unlock 50 Kustom Kombat Modifiers
Deal 1,000 total hits during Invasion Boss fights
Find a secret fight in the Living Towers
Complete 50 Living Towers
Complete a Tower with every character
Reach a 10 complete game win streak in Ranked 1v1 matches
Play 200 complete online matches
Earn 1,000 Respect points
Complete Tutorial
Complete an Invasion Tower
Play an Invasion Boss fight
Play 100 complete online matches
Win 5 complete Regular King of the hill matches
Win 1 complete Regular King of the hill match
Kill yourself with Kotal Kahn for 1 round and win the match
Win 1 complete match in Survivor King of the Hill
Beat an opponent while they still have 90% health and you have 10% or less health remaining
Give Respect points in a King of the hill match
Win a single Tower Challenge
Complete a Test Your Might Tower
Win a single complete match with every character variation
Play every character variation
Perform every character's X-Ray
Perform a Fatality in a match with every character
Win a match by time out
Duck 30 times during Fatality sequence
Reach level 50 in any faction
Win 5 Tower Battles
Win 1 Tower Battle
Send a Tower Challenge to a friend
Complete 1 Tower Battle
Win 1 complete online match
Equip a Background, Icon and Border set
Complete 10 Living Towers
See all Test Your Might deaths
Perform 100 Fatalities in matches
Perform 50 Brutalities
Create a sun ray with Kotal Kahn and perform a flip stance 5 times while in the ray
Win an Invasion 1v1 fight
Complete 100% of Story Mode
Become a member of every faction
Equip a new Border
Play 7 complete Test Your Luck matches
Hit someone with the old lady Level Interaction
Complete 50% of Story Mode
Confront a beast within the Krypt
Complete a single Tower
Equip a new Background image
Equip a new Icon
Jump 30 times in 1 match
Enter Practice mode
Reach personal level 10 in XP
Perform 1 Brutality
Spill 1,000 pints of blood
Reach level 5 in any faction
Perform 1 Fatality in a match
View Kombat Kard
Don't perform a Kombo over 4 hits with Bo' Rai Cho and win a complete Online Ranked 1v1 match
Perform the Kove Stage Fatality with Triborg in the Klassic Tower
Flip Stance 10 times with a Kombat Pack 2 character during a Fatality sequence in an Online match
Win the match with your opponent stepping on Caltrops
Perform a Stage Brutality with Alien in the Klassic Tower
Perform the Pit Stage Fatality with Leatherface in the Klassic Tower
Perform Bo' Rai Cho's Drinking special 10 times during a match in the Klassic Tower
Throw 5 Face Huggers during a match with Alien in the Klassic Tower
Win a match after connecting all attacks from Leatherface's Berserker Stance in the Klassic Tower
Jump back and forth over your opponent 5 times during the Fatality sequence and perform a Fatality
Perform a Klassic Fatality in a Klassic skin
Win 5 complete matches with each Robot Type
Complete the Klassic Tower with one of the Kombat Pack 2 characters