Here is the full list of all 19 The Sea Will Claim Everything achievements.
Discover the meaning of the ancient phrase.
Reject Lord Urizen's dogma.
Heal Underhome.
Help the people of the Isle of the Sun.
Help the people of the Isle of the Moon.
Did you make a cookie for the thoughtful lizard?
Gather all the Tokens of the Tomb of the Timber Tyrant.
Derek knew everything about alchemy, too... or so he thought.
Find all 700 collectibles!
Help the people of the Isle of the Stars.
Help Niamh with her research so she can go back home.
Set sail to explore the Fortunate Isles. You're not sure what ahoy means, but it sounds nautical.
This achievement contains tofu.
A smelly old achievement found in a box.
The mouse had achievements before everyone else did.
Guide Sunsquid back to the Electric Continent.
Frubble frubble frubble frubble.
A bit of code The Mysterious-Druid accidentally left in the window's code gives you an achievement when pressing W.
Have some tsipouro.