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