Thalassa: Edge of the Abyss
Achievement list · rarity · tracker · no guide yet, sign in to request one
Uncover the mystery of Thalassa, a first-person psychological drama set under the sea. Ill-fate has fallen on your former crew and friends and it’s up to you to find answers onboard the wreckage. Experience the melancholic underwater journey of human stories facing life and loss.
The Dive
Very common73.1%Complete the prologue
Curiosity
Common67.6%Open the sunken drawer before getting to the Thalassa
Welcome home
Common67.4%Return to the Thalassa
Poly the Cat
Common57.2%Pet Poly the Cat
Memories of a better time
Common57.1%
Intrusive thoughts
Common53.9%
Mystery Novice
Common53.0%Solve 10 Mysteries
Solution Seeker
Common50.7%Solve 20 Mysteries
A step closer to the truth
Common49.4%Complete all crucial mysteries needed to progress to Deck 2
Secret Sage
Common48.1%Solve 30 Mysteries
Mystery Virtuoso
Common46.3%Solve 40 Mysteries
Secrets of a friend
Common46.0%
Finding a home
Common45.5%
Letting go
Common43.6%
Puppylove
Common43.6%
No one to blame
Common42.9%
Integrity over fame
Common42.8%
A captains trust
Common42.6%
Secret Savant
Common40.4%Solve 50 Mysteries
Undying bond
Uncommon38.6%
Avid listener
Uncommon37.7%Listen to all Wax roll recordings in the game
Master of Mysteries
Uncommon30.9%Solve all Mysteries
Nautical Nomad
Uncommon12.7%Visit all areas on the Thalassa
Chained by grief
Uncommon12.0%
Heartless
Very rare3.1%Related games
Explore more lists
Track your progress
Sign in with Steam or Xbox to mark off unlocks, filter what's left and showcase your 100%s.
- Live unlock status per achievement
- Hide-unlocked filter
- 100% showcase on your profile