Here is the full list of all 49 Death Must Die achievements.
Win an attempt as Nixi using the Endless Night talent
Win an attempt as Nixi using the Mind Reaper talent
Win an attempt as Front using the Rampage talent
Win an attempt as Merris using the Charged Field talent
Win an attempt as Merris using the Telekinesis talent
Win an attempt as Avoron using the Light Rays blessing from Lady Justice
Win an attempt as Skadi and her wolves
Win an attempt as Skadi with Darkness
Defeat The Djinn as Front
Win an attempt as Lorien using the Whistling Arrow talent
Win an attempt as Lorien using the Bask in Greatness talent
Level up to 40 as Lorien
Defeat The Insect Queen as Lorien
Travel to 40 different locations in an attempt as Avoron.
Lose an attempt as Lorien
Kill 1000 Skeletons as Lorien
Traverse 50000 distance as Lorien
Not a scratch
4 Times jumper
I don't need no handouts
What we do in the 10th shadow
A cat dies 9 times
5 Lamps to turn off
33 Sync-Ups
Get 8 visual effects
The magic of friendship
Do not take the purple bait
20 Seconds for two bats
Number go up to 30
A stake for a vampire
Defeat the Baron
Instant bash
Stop the evil old man
A d20 of 400
999 Bandages
On the hunt for a bat
I need 40 good men
Time travelling twice for victory
50 Summoning orders
I wield the 5 elements
A total of 2000 natural 20 damage
300 Steps
4000 Pounds of jelly
50 Shields for my wall
25 With a single blow
100000 Wounds Inflicted
6000 Bones to pick
A red and a blue bat
500 bones under the sword