Full list of all 20 Dead Dungeon (Windows) achievements worth 1,000 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Windows.
Kill the enemy in an unexpected way
View credits
Kill 100 enemies
Use the portal
Complete 10 levels
Die 100 times
Find first collectable
Kill the first enemy
Die for the first time
Die 500 times
Complete 20 levels
Activate the trap
Complete 30 levels
Die 1000 times
Complete 40 levels
Find the second secret level
Defeat the boss
Find the first secret level
Collect all donuts
Collect all collectables