Free games like Alt Oxygen
Below are 9 free-to-play Steam games similar to Alt Oxygen, 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 Alt Oxygen page.
Ranked picks
- 1
ENA: Dream BBQ
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Indie and Adventure with Alt Oxygen.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 2
Indigo Park: Chapter 1
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Action and Indie with Alt Oxygen.
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
The Looker
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Indie with Alt Oxygen.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 4
![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 Alt Oxygen — no purchase or trial window. Shares Action and Indie with Alt Oxygen.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 5
Dagon: by H. P. Lovecraft
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Indie and Adventure with Alt Oxygen.
Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.
- 6
The Lab
Free-to-play alternative to Alt Oxygen — 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!
- 7
93, Kuindzhi
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Indie and Adventure with Alt Oxygen.
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
DORONKO WANKO
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Action with Alt Oxygen.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 9
The Seasons Collection: Spring
Free-to-play alternative to Alt Oxygen — no purchase or trial window. Shares Action and Indie with Alt Oxygen.
Start your journey as Cyrus to find your sister, Ava in Spring. The first game of The Seasons Collection involves brilliant FPS gameplay with a beautiful story to remember. All you will have is a rifle, a shotgun and limitless enemies as you start discovering the mystery of the forest.