Free games like Tides of Tethys
Below are 8 free-to-play Steam games similar to Tides of Tethys, 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 Tides of Tethys page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie with Tides of Tethys.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
missed messages.
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie and Simulation with Tides of Tethys.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
- 3
Magic Archery
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie and Simulation with Tides of Tethys.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 4
Paper Lily - Chapter 1
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie with Tides of Tethys.
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.
- 5
The Lab
Free-to-play alternative to Tides of Tethys — 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!
- 6
Project Kat - Paper Lily Prologue
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie with Tides of Tethys.
Project Kat is a short, unconventional RPG horror game in which there is always another way. Solve puzzles, make friends (or not), and guide Kat as she attempts to uncover the mystery behind a strange golden letter.
- 7
Saihate Station
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Indie with Tides of Tethys.
An exploration/horror/adventure game about the codependent, love-hate relationship between two men.
- 8
Landfall Archives
Free-to-play alternative to Tides of Tethys — no purchase or trial window. Shares Strategy and Indie with Tides of Tethys.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!