Free games like I Thalassa
Below are 8 free-to-play Steam games similar to I Thalassa, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like I Thalassa page.
Ranked picks
- 1
Life is Strange - Episode 1
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 2
ENA: Dream BBQ
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 3
Indigo Park: Chapter 1
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 4
The Looker
Free-to-play alternative to I Thalassa — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 5
![UNBEATABLE [white label] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1290490/header.jpg?t=1736770503)
UNBEATABLE [white label]
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 6
Dagon: by H. P. Lovecraft
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.
- 7
Paper Lily - Chapter 1
Free-to-play alternative to I Thalassa — no purchase or trial window. Shares Adventure with I Thalassa.
Paper Lily is an RPG horror game in which you can solve puzzles in different ways. Explore a hidden world, meet strange characters, and guide Lacie as she attempts to find answers about her unusual condition.
- 8
The Lab
Free-to-play alternative to I Thalassa — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!