Free games like Californium
Below are 8 free-to-play Steam games similar to Californium, 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 Californium page.
Ranked picks
- 1
NaissanceE
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
NaissanceE is an obscure and magical first person exploration game, a philosophical trip and an artistic experience. The adventure takes place in a primitive mysterious structure and the game mainly consists to explore and feel the deep and strong ambiance of this atemporal world.
- 2
Off-Peak
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
You're stranded at a cathedral-like train station in the near future, searching for a ticket out of town. Explore the secret passageways, interact with strangers, dig for records, and get hypnotized by the soundtrack – a batch of original music courtesy of the band, Archie Pelago.
- 3
9.03m
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie with Californium.
The media is quick to put figures to death tolls in such disasters, and 9.03m tries to remind people of the individuals behind those figures. 9.03m is set on Baker Beach in San Francisco, where debris from the tsunami has washed ashore in the years following the tsunami. To play, you must find the butterflies.
- 4
ENA: Dream BBQ
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 5
![Close Your Eyes [Old Version] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/377330/c8d8c555e37e28190ecd34dae23ca4b0d73ce5bc/header.jpg?t=1746732306)
Close Your Eyes [Old Version]
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
A redux version of a 2014 Ludum Dare RPG Maker Horror Game. A poor little marshmallow escapes death row into an underground subway system, where they're asked questions by a mysterious game show host. Updated in 2025 with new content.
- 6
Adventure Escape Mysteries
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
Play a story-driven room escape game with unique puzzles enjoyed by tens of millions of players. Solve mysteries, puzzle through escape rooms, and find the clue that will crack the case in a critically acclaimed puzzle adventure game!
- 7
Hello Neighbor Alpha 1
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
This is Alpha 1 of Hello Neighbor, a Stealth Horror Game about sneaking into your neighbor's house and figuring out what he's hiding in the basement. Play against an advanced AI that learns from your actions.
- 8
Hello Neighbor Alpha 2
Free-to-play alternative to Californium — no purchase or trial window. Shares Indie and Adventure with Californium.
Welcome to Alpha 2 of Hello Neighbor. Play against an advanced, self-learning AI in what eventually became Act 1 of Hello Neighbor - the stealth horror home invasion sim.