Ultimate Tic Tac Toe Master vs Chain Reaction OG

Three games in one: classic Tic Tac Toe, real Gomoku and Order & Chaos. Challenge the AI, play a friend on the same phone, or take on players around the world. Free to play. NEW IN 2.1: SERIOUS GOMOKU • 15x15 and 19x19 boards with exact five rules: six or more in a row does not count • Pro and Swap2 tournament openings • Japanese and NHK byo-yomi clocks for games against the clock • Weekly Gomoku ladder: every online win counts, and it resets each Monday • Pinch to zoom on the big boards THREE WAYS TO PLAY X AND O • Classic: the timeless 3x3 game. Get three in a row to win. • Gomoku: five in a row on 9x9, 15x15 or 19x19. Easy to learn, deep to master. • Order & Chaos: a 6x6 board where both players can place X or O. Order tries to make five in a row, Chaos tries to stop it. • Create your own game: pick the board size and how many in a row wins, then play it against the AI or a friend. PLAY ANY GAME, ANY WAY • Vs AI: Beginner, Medium and Hard • 2 Players: pass the phone to a friend • Online: quick play matches you with players worldwide • Private rooms: share a 6-digit code to play your friends • Quick chat: send a quick message or emoji during online games, and mute it any time MAKE IT YOURS • 6 board styles: Midnight, Glass, Neon, Wood, Chalkboard and Paper • Classic, Modern, Emoji or round Stone pieces • Piece colors including Classic, Neon, Earth and Turquoise • Smooth animations and a clean, dark design COMPETE AND PROGRESS • Leaderboards for AI, Online, Gomoku and Order & Chaos • 14 achievements to unlock, from First Victory to Ladder Climber • Match history and your stats for every mode Perfect for a two-minute break or a long rivalry with friends. Download free and make your first move!

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/