Brainstone Live

Brainstone is a collection of logic puzzles in a dark, understated setting: no lives to refill, no timer rushing you, just you and a well-crafted problem. THE LAUNCH GAME: KEYSTONE A secret four-color code hides behind the keystone. Compose a guess, confirm it, and the board answers: right spot, present elsewhere, or absent. Ten attempts to crack the secret, through pure deduction. A guided tutorial teaches the rules in a single game, a hint bulb unblocks you without giving the answer away, and the stopwatch is only there for your personal records. An interrupted game resumes exactly where you left it. TRULY PLAYABLE ANYWHERE Brainstone works fully offline: on a plane, in the subway, deep in a dead zone. Finished games are stored on your device and upload on their own once the network returns. Nothing is lost, nothing blocks you. NO ACCOUNT REQUIRED Open the app and play: guest mode is complete. If you want your progress on another device, sign in with your Google account: your local history is merged into your account, never overwritten. DESIGNED FOR ALL EYES AND ALL HANDS Every peg carries a symbol on top of its color, so color blindness never keeps anyone from deducing. Animations can be reduced with a single setting (or automatically follow your system preference), touch targets are large, and screen readers are supported. YOUR PROGRESS, NOT OTHER PEOPLE'S Games played, wins, best time: Brainstone measures your progress against yourself. No anxiety-inducing leaderboards, no guilt-tripping notifications. MORE IS ALREADY ON THE SHELF The library shows the next puzzles in the making: Shikaku (rectangle carving), Pipes (networks to reconnect), Onyx (two-tone binary grids). They will unlock over future updates, with the same standard: simple rules, real depth. Brainstone is available in English and French.