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