Claim a cell
Tap any empty cell, or one you already own. You can never play on someone else's.
Chain Reaction Global
Place one orb.
Take the whole board.
Fill a cell past the number of neighbours it has and it detonates into all of them, flipping their colour on the way. Those cells can detonate too. The right placement collapses an entire board at once.
Online rooms are live
- 2–8 players
- 4 bot levels
- No signup
Live demoThree bots, playing now
How it works
Three rules. That is the entire game.
Overload it
A cell bursts once it holds as many orbs as it has neighbours — two in a corner, three on an edge, four in the middle.
Take the board
The blast pushes one orb into each neighbour and flips them to your colour. They can burst in turn. Chains can end a match in a single move.
Ways to play
On this deviceLocal
Pass the phone around, or fill the empty seats with computer opponents.
- Two to eight seats, each set to a human or a bot
- Four difficulties, from careless to a real depth search
- Board presets from compact to XXL, and a turn timer
With friendsOnline
Create a room, send the link, and play from anywhere. Nothing to install.
- The server holds the rules, so nobody can disagree about a move
- Refresh or lose signal and you come back to the same seat
- A turn timer plays for anyone who drops, so a match never stalls