Here is the full list of all 19 Doors of Insanity achievements.
Put on your first piece of equipment
Reach character lv 2
Die for the first time
Defeat your first mini boss
Consume a card
Don't be greedy!
Buy anything from the crystal shop
Win a match in PvP
Win a battle with 4 summons of the same type at once
Defeat the 1st boss -Azriel
Play on hard difficulty
Defeat the 2nd boss -Void
Have over 99 Absorb in a turn
Reach character lv10
Get 1000 gold during your run
Collect over 10 artifacts in one run
Dont get fisted by God's "My Wrath" skill
Defeat the 3rd boss -God
Play on insane difficulty