Play Chain Reaction, a fast strategy game. Build powerful reactions, capture rivals, dominate the board, and challenge friends in addictive multiplayer battles.

Build critical mass. Trigger explosive chain reactions. Capture the entire board.

Chain Reaction OG is a fast-paced local multiplayer strategy game for 2–8 players. Place your atoms, take control of the arena, and unleash powerful cascades that can transform the board in a single move.

Every turn matters. Protect your territory, control valuable corners and edges, and wait for the perfect moment to start an unstoppable chain reaction. The rules are simple, but mastering the board takes clever planning, timing, and tactical thinking.

LOCAL MULTIPLAYER FOR 2–8 PLAYERS

Gather friends and family for competitive pass-and-play matches on one device. No accounts, complicated setup, or lengthy tutorials—choose your players, select an arena, and start playing.

SIMPLE TO LEARN, HARD TO MASTER

Place atoms inside your cells to build critical mass. When a cell reaches its limit, it explodes and spreads atoms into neighboring spaces. Capture rival cells, create massive combos, and eliminate every opponent to become the last player standing.

One carefully planned move can trigger a board-clearing chain reaction.

CUSTOMIZE EVERY MATCH

• Local pass-and-play multiplayer for 2–8 players • Fast, competitive strategy matches • Four board sizes: Small, Medium, Large, and Huge • Multiple orb finishes and arena styles • Smooth animations and satisfying chain reactions • Responsive, easy-to-use controls • No account required

Whether you are looking for a quick two-player battle, a family party game, or an intense multiplayer strategy challenge, Chain Reaction OG makes every match unpredictable.

FREE TO PLAY

Play Chain Reaction OG for free. Ads are shown between completed matches, so gameplay is never interrupted.

CHAIN REACTION PRO

Upgrade to Chain Reaction Pro with a monthly subscription to:

• Remove all ads • Unlock every orb finish • Unlock every arena skin

Internet access is used for purchases, advertising, and diagnostics.

DISCLAIMER

Chain Reaction OG is an independently developed game. It is not affiliated with, endorsed by, sponsored by, or officially connected to any other game developer, publisher, brand, product, or platform. Any third-party names or trademarks are the property of their respective owners.

Gather your rivals, choose your board, and start the next explosive battle in Chain Reaction OG.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/