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