Chain Reaction 2050

Miss playing games with your people? Start a room, share the 4-letter code, and you're playing together in seconds anywhere. And when no one's around, the AI's up for it.

Chain Reaction is the classic game of orbs, critical mass, and cascading explosions.

The rules take ten seconds to learn. Tap a cell to place an orb. When a cell holds more orbs than it can bear, it bursts into its neighbors, and every orb it touches turns your color. Those neighbors can burst too. One well-placed tap can sweep the entire board.

The strategy takes much longer to master. A corner cell holds two orbs before it goes. An edge holds three. A cell in the middle holds four. Every orb you add is both an attack and a liability, and a board that looks settled can turn over completely on a single move.

Play head-to-head, hunt for the one move that topples everything, and learn to think an explosion ahead.