Thalassa: Edge of the Abyss (2024)

- Developer
- Sarepta Studio
- Publisher
- Team17 Digital Ltd
- Platforms
- Windows
- Genres
- Adventure, Indie, RPG
- Rating
- 4.5 of 5, 355 player ratings
- Typical playtime
- about 9.6 hours
- Where to get it
- Steam

The catalog in 3D
The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.
How it feels
A first-person psychological drama set in the deep sea, where you explore a sunken ship alone, guided only by a voice on the radio, uncovering a haunting mystery through emotional storytelling.
atmosphericemotionalpsychologicalimmersivenarrative-drivenmysteriousunderwaterslow-paced
What players say
Players praise the emotional depth and mystery of this underwater investigation, saying it sticks with them long after finishing. Many note the slow walking speed and backtracking as minor frustrations, but the story and atmosphere keep them engaged. Some compare it to Outer Wilds.
Screenshots






More games like this
Sea under the sea under the sea (2024)
Deep Beyond (2024)
Esca (2024)
Harold Halibut (2024)
Lazaret (2024)
Portrait of a Torn (2024)
Forever Space: First Person Edition (2024)
Open Roads (2024)- More like this game, on a shelf you can walk up to.It's the lit case on the top shelf.
More by Sarepta Studio
My Child Lebensborn Remastered (2023)
Shadow Puppeteer (2014)
My Child: Lebensborn (2018)
My Child: Lebensborn Remastered (2023)
My Child New Beginnings (2025)