Free games like Alterum
Below are 9 free-to-play Steam games similar to Alterum, 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 Alterum page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Alterum — no purchase or trial window. Shares Action and Indie with Alterum.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Indigo Park: Chapter 1
Free-to-play alternative to Alterum — no purchase or trial window. Shares Action and Indie with Alterum.
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
Counter-Strike:Global Offensive
Free-to-play alternative to Alterum — no purchase or trial window. Shares Action with Alterum.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 4
Dagon: by H. P. Lovecraft
Free-to-play alternative to Alterum — no purchase or trial window. Shares Indie with Alterum.
Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.
- 5
93, Kuindzhi
Free-to-play alternative to Alterum — no purchase or trial window. Shares Indie with Alterum.
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.
- 6
Hello Neighbor Alpha 2
Free-to-play alternative to Alterum — no purchase or trial window. Shares Indie with Alterum.
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.
- 7
Crime Scene Cleaner: Prologue
Free-to-play alternative to Alterum — no purchase or trial window. Shares Action with Alterum.
When there’s a call, you are the man to clean up after your client’s dirty job. Siding with the mafia is a dangerous game, but they pay well, and you need money, right? So take your mop and better remove those bloodstains quickly before the police come.
- 8
Liquidators
Free-to-play alternative to Alterum — no purchase or trial window. Shares Indie with Alterum.
Chernobyl, USSR, 1986. Three nuclear plant workers go on a daring mission to prevent a radioactive fallout that would affect half of Europe. Every moment is permanent, and all is at stake.
- 9
SHAPE & SHADE
Free-to-play alternative to Alterum — no purchase or trial window.
SHAPE & SHADE is a multiplayer game that combines Prop Hunt and Social deduction mechanics, draw your own disguise and survive until de train reach the Station. Watch your friends slowly go crazy trying to figure out what's real and what’s not !