Here is the full list of all 33 Mythic Ocean achievements.
Witness the Panopticon ending.
Collect 18 Pages.
Witness The Scourge ending.
Witness an ending in which the gods go to war.
Help the creatures trapped in the Breach find a way home.
Collect 9 Pages.
Meet 50 NPCs.
Talk to Tuff about what's been following them.
Witness Lord Poison's inaugural concert.
Huh. What happened to Frill?
DID YOU REMEMBER THE RULE??
Hear from Flip about everyone trying their new routine.
Spend 30 uninterrupted seconds in Lutra's pod.
Hear Rosetta's thoughts on the world's conflicting melodies.
Meet 25 NPCs.
Find out what's behind that metal gate in the Kelp Forest.
Finish 1 Fable.
Ride the whirlpools in the Kelp Forest 5 times.
Hear Rosetta's thoughts on the world's pleasant melodies.
Deliver Flip's special message for Pout.
Talk to Tuff about their impressive physique.
Hear from Zubin about their new perspective on life.
Hear about Snap and Frill's new arrangement.
Witness the Endless Party ending.
Witness the Rainforest Reserve ending.
Witness the Storm of Despair ending.
Witness the Powers For All ending.
Witness The Collective ending.
Witness the Megacorp Universe ending.
Witness the Solarpunk Star System ending.
Witness an ending in which the gods try to reach a compromise.
Witness an ending in which the gods have no disagreements.
Knock a beaker or tank out through the bottom of Alethea's lab.