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