Here is the full list of all 24 The Weaponographist achievements.
Unlock three jinxes by playing Survival.
Unlock one jinx by playing Survival.
Reach and clear Room 10 on Survival Mode.
Banish the menace behind the dungeon.
Raise one weapon to its absolute peak.
Massacre 300 demons in a single combo.
Topple a seven story murderer.
Get to Exp Level 8.
Collect 100,000 Goop at one time.
Crush an ice wizard who was really only looking for a friend.
Destroy an angry marionette before it self-actualizes.
Collect two Health Runes in the same playthrough.
Collect 10,000 Goop at one time.
Rack up 200 kills in a single combo.
Improve your leaderboard time for any level.
Attain Exp Level 5.
Dispatch a Terrible Lizard from the past. (Future?)
Attain a 100 kill combo.
Raise one weapon to its current level cap.
Attain your first checkpoint.
Beat one Depth on Hardcore.
Beat all Depths on Hardcore.
Unlock all jinxes by playing Survival.
Reach and clear Room 30 on Survival Mode.