Complete the game on Hard difficulty.
Pump every section of the Salem.
Uncover 1,000 Clues.
Defeat the Captain Ascendant.
Use the Profane Chapel to resurrect a dead diver.
Kill 500 enemies.
Deal 250 damage to enemies in a single turn.
Detonate the Soviet nuclear bomb.
Inspect a dead Stalking Tentacle.
Unlock one of the top-level nodes on the Biological track of the Enigma Board.
Defeat the Gatekeeper.
Inspect a dead Murkfiend.
Defeat the First to Hunger.
Inspect a dead Voidspawn.
Inspect a dead Fathom Seer.
Unlock one of the top-level nodes on the Eldritch track of the Enigma Board.
Inspect a dead Soviet Diver.
Have an enemy kill another enemy.
Inspect a dead Infected Pod.
Earn 20,000 score on Endless Mode.
Kill one of your divers with friendly fire.
Mutate one of your divers.
Deal 150 damage with one critical attack.
Unlock one of the top-level nodes on the Mechanical track of the Enigma Board.
Kill five or more enemies in a single turn.
Inspect a dead Vessel.
Have a single diver undergo four Mutations.
Inspect a dead Burst Pod.
Inspect a dead Spineskulker.
Recover the arming code for the Soviet nuclear bomb.
Inspect a dead Scyphozoa.
Inspect a dead Harvester.