Full list of all 54 Sunless Sea achievements.
The base game contains 30 achievements, and there is 1 DLC pack containing 24 achievements.
Spend ten years out at zee in an unbroken lineage
Suffer Salt's Curse
Suffer Storm's Curse
Discover 'The Eye'
Download new stories
Spend five years out at zee in an unbroken lineage
Send your child to zee
See Hunter's Keep burn
Woo a sweetheart in London
Recruit the imaginary officer
Complete the game without ever choosing a past
Discover The Dawn Machine
Achieve Antiquarian 10
Let your terror reach 100
Let your terror reach 90
Suffer Stone's Curse
Take the Correspondent legacy
Spend one year out at zee in an unbroken lineage
Take the Shipmate legacy
Die 10 times in an unbroken lineage
Take the Rival legacy
Take the Salvager legacy
Die 5 times in an unbroken lineage
Complete the game without saving manually
Achieve Admiralty's Favour 10
Acquire the Eschatologue-class Dreadnaught
Take the Pupil legacy
Die for the first time
Visit the Surface
Create an ironclad will
Complete the Zubmariner ambition
Perform an abyssal ritual to encounter Lady Black
Collect all of Drownie Love-song, Drownie Counterpoint and Drownie Hymn
Use an oasis to increase your oxygen levels
Avoid being killed by the Unexploded Unclear Bomb
Be killed by an underwater creature
Accept a power of the deep zee
Be killed by the Constant Companion
Escape underwater combat by resurfacing
Come face to face with the Constant Companion
Die of suffocation
Discover Low Barnet
Discover Dahut
Discover Anthe
Discover Rosegate
Discover Wrack
Discover Nook
Discover The Gant Pole
Discover Hideaway
Discover Undercrow
Use underwater currents to bear you on your way
Discover Scrimshander
Discover Aigul
Venture beneath the waves