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