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