Free games like Castle of Mist
Below are 9 free-to-play Steam games similar to Castle of Mist, 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 Castle of Mist page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Action and Indie with Castle of Mist.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Indigo Park: Chapter 1
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Action and Indie with Castle of Mist.
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.
- 3
Dagon: by H. P. Lovecraft
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Indie and Adventure with Castle of Mist.
Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.
- 4
Paper Lily - Chapter 1
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Indie and Adventure with Castle of Mist.
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 Castle of Mist — 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 Castle of Mist — no purchase or trial window. Shares Indie and Adventure with Castle of Mist.
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
93, Kuindzhi
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Indie and Adventure with Castle of Mist.
Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.
- 8
Cube Escape: Paradox
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Indie and Adventure with Castle of Mist.
The tenth Cube Escape follows the story of detective Dale Vandermeer who finds himself trapped in two different universes and needs to escape. Cube Escape: Paradox will be released together with the accompanying Paradox: A Rusty Lake Film.
- 9
Mage Mayhem
Free-to-play alternative to Castle of Mist — no purchase or trial window. Shares Action and Strategy with Castle of Mist.
Mage Mayhem is a roguelike featuring unique magic with hundreds of different styles to explore. Customize your experience through a variety of abilities and upgrades. Enjoy alongside your friends, then battle them in various other PvP game modes.