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