Here is the full list of all 44 8Doors: Arum's Afterlife Adventure achievements.
All regions 100% complete.
Land of Abundance 100% complete
Interacted with all Dawn Tombstones
Misty Forest 100% complete
Stone Mountain 100% complete
Obtain all Perks
Frozen Plateau 100% complete
Barren Grounds 100% complete
Guided all Fugitive Souls
Crimson Mines 100% complete
Underground Waterway 100% complete
Kingdom of Yama 100% complete
Obtain all Reaper Perks
Obtain all Flowers of Life
Obtain all Pathfinder Perks
Obtain all Messenger Perks
Clear the game without dying.
Clear the game without learning any other Perk except Duoxini
Complete Normal Mode in 3 hours