Thalassa: Edge of the Abyss

Thalassa: Edge of the Abyss

Sarepta Studio · 2024 · Adventure, Interactive Fiction, First-Person, Atmospheric, Emotional

PC
Very Positive87% · 302
Best price 47 Good deal
$8.58-57%
$19.99lowest tracked $6.80
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Screenshots

About Thalassa: Edge of the Abyss

Thalassa is a single player, first person psychological drama set in 1905. You play as Cam, a deep sea diver in a crew of adventurers and pioneers aboard Thalassa. As you prepare to raise a long-forgotten Spanish galleon from the ocean, what should be a great day for history takes a turn for the worst.

Upon needing to take some time to heal from the event, you discover Thalassa has met a mysterious and unfortunate end. Your former crew mates are gone, and you'll need to descend into the depths to board the ship once more. Alone in the ocean, with your diving support Bailey guiding you from the surface, it's up to you to piece together the clues left behind in the wreckage and discover what really happened in the final moments onboard the ship.

Immerse yourself in an atmospheric story of self-discovery and sorrow onboard Thalassa.

Discover a story that delves into the complexities of human emotions and interactions, and learn about the intricate relationships between your crew members. You'll uncover the personal struggles of each member of Thalassa's crew and how grief can be experienced in different ways. Loss takes its toll in many shapes and forms, while life marches on.

As the only diver left in the crew, it's up to you to return to Thalassa, now in its final resting place on the seabed. Navigate your way through the strange, but beautiful surroundings and discover the clues that will help you unravel the events leading up to the disaster.

Experience the calm and isolation of deep-sea exploration as you navigate through debris of the shipwreck. In order to continue exploring the ship, you'll have to find the right tools to help unblock the obstructions in your path.

DLC & expansions

🎁 Complete the collection

Base game + 1 of 1 DLC at today's best prices.

$16.57
to own everything

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jul 14, 2026
Hidden gem.
Recommended Jul 14, 2026
This is a rather engrossing game of mystery/investigation/exploration woven into a rather deep and somewhat emotional story regarding tragedy. The gameplay itself reasonably good, maybe curated/guided a wee bit too much, and the slowness of the movement is understandable given the environment but can be a little annoying at times. Overall very glad I bought and played this game...it's one of those games you'll think about for a while after you've finished it...
Recommended Jul 12, 2026
It's strange, because on the one hand I found the gameplay frustratingly slow and unintuitive, and I had to suspend all disbelief to accept the story. On the other hand, it was a very unique game and setting, and two weeks after I played it, I still find myself thinking about it. So, it's one of those [i]"if you think it might be interesting to you, it probably will be"[/i] recommendations.
Recommended Jul 7, 2026
This is a good game. Fun story and UI feels polished. Walking animation is slow and diving is not the most realistic but I am here for the story and vibes. This game is about 5-7 hours of playtime.
Recommended Jul 3, 2026
Good story, great charecters
Recommended Jul 3, 2026
A really good game that shows the impact of grief from a first person perspective. I enjoyed that the mysteries were easy to follow, but not in a "holding your hand" way, and that there was subversion of your expectations that didn't feel misleading. You naturally discover the solution/ subversion rather than being surprised by it in a sudden and unnatural way. Whole game kinda gave me Outer Wild vibes (real banger)

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