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