Monolith Achievements
Humble Beginnings
Reach the Excavation (Floor 1).
Archive Diving
Reach the Archives (Floor 2).
Underflow
Reach the Maintenance System (Floor 3).
Molten Core
Reach the Bellows (Floor 4).
End Layer
Reach the Sanctum (Floor 5).
Annoying
Leave that poor cat alone.
Accursed One
Defeated the Overlord.
Master of the Unseen
Get an S Rank in Secrets (Find all secrets)
Thorough Explorer
Get an S Rank in Exploration (Visit all rooms)
Speed Runner
Get an S Rank in Time (Under 20 minutes).
Tag Champion
Become the reigning tag champion.
Evasive
Get an S Rank in Damage (10 hits or fewer)
Exalted
Get all 4 S Ranks in one run.
Treasure Trove
Finished a run with a score of 100,000.
Ego Sum Aeternae
Power Internal
Won without getting any upgrades.
Peashooter
Won without getting any weapons.
Forbidden