Critical Mass: Chain Reaction

In-app purchases
52 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
In-Game Purchases
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About this game

An exciting new strategy board game... with a twist.

Players take turns adding orbs to cells. When your cells reach critical mass, they explode, claiming nearby cells. Win the game by eliminating all your opponent's orbs in an explosive chain reaction!

Once you've mastered the classic rectangle boards, you can move on to hexagonal and geometric boards. Master each uniquely shaped board using different strategies and skills.

Play against up to 7 friends on the same device, or play against the CPU on one of five difficulty settings for a single-player challenge.

Features:
- Five square boards to play on, each one with a unique challenge and design
- 10+ free boards to play on with square and hexagon grids
- New exciting board packs available every few months, each with a unique twist
- Free sample available for each new paid pack!
- No ads, ever. Consider supporting development by purchasing board packs
- 4 XL boards for larger screens, ideal for 5+ players
- Super smart AI for dynamic games against the CPU
- Helpful tutorial to teach new players the essentials
Explosive, uniquely challenging strategy board game!
Updated on
Sep 1, 2025

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.
  • No data shared with third parties
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  • No data collected
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Ratings and reviews

49 reviews
dingusdoufus
August 6, 2026
I chained the reaction many times, but I've never gotten bored. Also, y'all should increase the player limit for a match. A 12 player game on the XL size boards? Yes. And, the fact that there are no ads in the game is really sigma. 5 stars, would recommend.
1 person found this review helpful
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Denin Paul
July 2, 2024
Dude this is such an improvement from the OG game which is bug ridden. Also you elevated the game to a whole new level. And botss??? Thanks a lot for developing this!! You are the best
2 people found this review helpful
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Bharath
October 4, 2025
Great geometries! color scheme looks to be high contrast. bit milder color pallet would be great.
1 person found this review helpful
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What’s new

Updates to billing and compliance with Google Play policies.
Content rating
Everyone
In-Game Purchases
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App support

About the developer
SECTOR 7 DEVELOPMENT, LLC
sector7development@gmail.com
9313 S Copper Ln West Jordan, UT 84088 United States
+1 801-875-8252