What is Chain Reaction?
Chain Reaction is a free puzzle game with chain elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. In another galaxy, a small planet is the home of strange molecules.
How to play Chain Reaction
- Press "Play now" on the game screen. Chain Reaction loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Create a zone that absorb other molecules when they come into contact.
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Puzzle |
|---|---|
| Tags | chain |
| Controls | Shown in the game |
| Screen | Landscape (800 × 600) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameDistribution |
| Added to Gameziko | 30 September 2026 |
Description from the developer
In another galaxy, a small planet is the home of strange molecules. These multicolored molecules go crazy in all directions. Your goal is to create a chain reaction, to catch as much molecules as possible. Click somewhere will create an explosion that will affect all molecules in the area.
Chain Reaction: frequently asked questions
Is Chain Reaction free to play?
Yes. Chain Reaction is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in Chain Reaction?
The developer's instructions for Chain Reaction say: "Create a zone that absorb other molecules when they come into contact."
Can I play Chain Reaction on a phone or tablet?
Chain Reaction is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Chain Reaction?
If you like Chain Reaction, try Chain Cube 2048 3D, Colors domination and Flower Blast. They are puzzle games with similar themes, and you can find more in the Puzzle category on Gameziko.
Good to know
Chain Reaction is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.