About I Thalassa
I Thalassa is a single player and multiplayer open world action adventure game with mystery and science fiction themes.
You are not the goddess. You are her dumbest duck. Dive into a biomechanical alien ocean, explore its depths, pilot submarines, salvage resources, fight creatures and rival players, and help Thalassa rebuild the creator she lost.








Games Like I Thalassa
Looking for games like I Thalassa? Here are top open world action adventure recommendations with a mystery and science fiction focus, selected from player-similarity data — start with Ace of Seafood, XenoWild: Survival Beyond or Subnautica 2.
Frequently Asked Questions
I Thalassa is a open world action adventure game with mystery and science fiction themes. Common tags for I Thalassa include indie, exploration, nature, third person, combat and others.
I Thalassa is available on PC, Mac OS, Windows and Linux.
I Thalassa was developed by San Liuk.
I Thalassa is a single player game with multiplayer and local co-op support.
Similar games include Ace of Seafood, XenoWild: Survival Beyond, Subnautica 2, Benthos, WindSail and others.











