Here is the full list of all 41 SoulCraft achievements.
Reach Level 50
Collect 1.000.000 Souls
Collect 500.000 Souls
Reach Level 35
Learn 20 Skills
Defeat Earthshaker Lyrruth
Win an Insane Difficulty Quest
Win an Insane Difficulty Quest without using a Potion or Revive
Collect 100.000 Souls
Adopt a Pet Companion
Defeat Shruthar the Deceiver
Reach Level 20
Equip an Item of Legendary (yellow) quality in every Slot
Equip an Item of Rare (blue) quality in every Slot
Collect 200 Essences
Defeat the Broodmother
Kill 1000 Enemies
Equip a Character Skin
Win a Very Hard Difficulty Quest without using a Potion or Revive
Win a Very Hard Difficulty Quest
Win a Hard Difficulty Quest without using a Potion or Revive
Defeat Shakkur the Assassin
Learn 10 Skills
Purchase a Mystery Chest
Consume 30 Potions
Let an enemy die in a Snapper Explosion
Kill 500 Enemies
Reach Level 10
Defeat Pyron the Destroyer
Revive your Character
Win a Hard Difficulty Quest
Make an enemy die in a Toxic Pool
Learn 5 Skills
Equip an Item in every Slot
Kill 100 Enemies
Defeat Toxurr the Chemist
Defeat Morrus the Butcher
Reach Level 5
Learn a new Skill
Craft an Item
Defeat your first wave of enemies