Free games like chemical
Below are 8 free-to-play Steam games similar to chemical, 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 chemical page.
Ranked picks
- 1

Indigo Park: Chapter 1
Free-to-play alternative to chemical — no purchase or trial window. Shares Action and Adventure with chemical.
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.
- 2

The Looker
Free-to-play alternative to chemical — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 3

Counter-Strike:Global Offensive
Free-to-play alternative to chemical — no purchase or trial window. Shares Action with chemical.
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

The Lab
Free-to-play alternative to chemical — 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!
- 5

93, Kuindzhi
Free-to-play alternative to chemical — no purchase or trial window. Shares Adventure with chemical.
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 chemical — no purchase or trial window. Shares Adventure with chemical.
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

Control, I'm Not Coming Back
Free-to-play alternative to chemical — no purchase or trial window. Shares Adventure with chemical.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 8

The Riftbreaker: Prologue
Free-to-play alternative to chemical — no purchase or trial window. Shares Action and Adventure with chemical.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.