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.
AN EMOTIONAL JOURNEY OF LIFE AND LOSS
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.
UNCOVER THALASSA'S MYSTERY
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.
EXPLORING THE WRECKAGE
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.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-01-29
Monthly Recap - January Edition
For the first monthly recap of the year, we have prepared some truly interesting picks to focus on and we can’t wait to share them with you, so read on if you wish to find out the cool gaming news and important info about a major title cancelation and company restructuring that we have chosen to present to you this time! The upcoming Marathon release date and a new Life Is Strange title and more…
The fan-favorite survival horror series, both developed and published, by Capcom is coming back for its 9th time in the nearly 30 years of its existence, by continuing the main storyline further with the Resident Evil Requiem release on 27th of February. We are going to once again go to one of the most iconic locations in the Resident Evil series - the classic setting of a destroyed Racoon City…