Chain Reaction

Contains ads
3.6
209K reviews
10M+
Downloads
Content rating
Everyone
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About this game

A strategy game for 2 to 8 players.

The objective of Chain Reaction is to take control of the board by eliminating your opponents' orbs.

Players take it in turns to place their orbs in a cell. Once a cell has reached critical mass the orbs explode into the surrounding cells adding an extra orb and claiming the cell for the player. A player may only place their orbs in a blank cell or a cell that contains orbs of their own colour. As soon as a player looses all their orbs they are out of the game.

Game features both HD modes for larger (Pad) screens and the regular mode for all devices.

Each player can customise the colour & sounds of their orbs. A player can also turn tactile feedback (vibration) on and off.

I hope you have as much fun playing this as I have coding it.

-Matt :)
Updated on
Feb 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, Financial info and 3 others
This app may collect these data types
Personal info, Financial info and 3 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.7
198K reviews
Sripal
January 9, 2025
This is a great game for passing time with friends, with up to 8 players. The rules take about 2 minutes to understand, but you could play this game for days. The only problem is the hitboxes, which are really annoying when trying to hit a combo. The grid makes it confusing as to where you actually have to click, therefore registering some false info, which can derail the game in a sticky situation. It gets really annoying.
18 people found this review helpful
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jrconda padua23
February 1, 2026
The thing that is needed to fix in this game is the board on its own, I can't touch the top part or put a orb in there and when my phone width is set to 600dp the player variation setting can't no longer seen in the screen. What I mean is the content in the screen is not fully seen or cut. I can't put a orb at the top slots because the top banner is blocking the slots, please fix it ASAP.
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App Holdings
February 3, 2026
Thanks! We fixed a touch/input alignment issue (incl. with some display-size settings) so the top row is clickable again. Please update to v2.8 and see if it resolves it.
A Google user
December 7, 2018
Hey Devs. good job creating this game, but I have a request, it would be better if we can see the percentage of our color balls(I don't know what it is) and please add a different map other than rectangle, other shapes would be great like octagon etc. And this game would be way more fun if you could make it up to 10 players and it would be great if we can play with other players worldwide. Thats all, thank you.
592 people found this review helpful
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What’s new

Fullscreen/insets fixes for better screen fit + touch alignment; main menu now supports system dark mode; CPU (medium/hard) tweaked to avoid repetitive corner moves.