Full list of all 30 Ascend: Hand of Kul achievements worth 400 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox 360.
Consumed 20 humans
Contributed 50,000 points to the Crusade
You made the ultimate sacrifice and Ascended your first Caos
Slotted 3 runes
Spent 30,000 souls or purchased a Soul Pack
25 enemies know the power of magic from their graves
Looted 30 items or purchased 10 spells
Raised 3 shrines for your God
Decimated 200 enemies
Did 20 10x combos!
Sent a curse or blessing to another player
Killed 25 enemies
Created first Caos
Kill 1000 enemies
Get humans to kill 50 enemies for you
Curse 20 players
Bless 20 players
Banish 25 enemies into another player's realm
Cast 25 Crusade Spells
Have one of your Ascended Champions defeat another player
Defeat 3 player bosses
Purchase or discover a spell from each alignment
Transcend
Read all Highlands lore tomes
Defeat the Highlands Titan
Equip items that total 200 points of physical damage
Equip items that total 2000 points of armor
Fully upgrade any spell
Use an Alignment Mask boost to access a restricted alignment dungeon
Ascend 3 times