Here is the full list of all 30 Slain: Back from Hell achievements.
Kill Vroll without taking any damage.
Destroy Vroll and liberate Chalh within 3 minutes.
Find all five pieces of the Talisman.
Watch 30 enemies get killed by traps.
Defeat the Mother Beholder without losing any health.
Dispatch the Mother Beholder within 30 seconds.
Finish the Bloodgrounds without dying at all.
Defeat the Fire Hounds without losing any health.
Successfully execute 100 Critical Strikes.
Kill every Beholder in the Hive without using mana.
Headbang after every single boss has been defeated.
Defeat Hogre without losing any health.
Defeat Malikesh without losing any health.
You Have Been Killed 100 times. Rejoice!
Defeat the Ice Beast without losing any health.
Hit 6 Ice Meteors back at the Ice Beast.
Slay 8 of your enemies in a trice.
Destroy 30 enemies with reflected projectiles.
Complete Highlands level without killing an enemy with the flame blade.
Defeat the Banshee Queen without losing any health.
Escape the Highlands Caves through the secret passage.
Defeat Lupus Rex without losing any health.
Complete the Wolf Run without losing any health.
Squash a Wolf Guard in a crusher trap.
Reached the top of the Blood Tower without falling in any gore pits.
Defeat the Thorn Beast without losing any health.
Die for the very first time.
Successfully avoid the first spike trap in the Bloodgrounds.
Defeat the game without using any Mana.
Defeat the game without losing a single life.