Endless Tic-Tac-Toe

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Screenshots from the App Store.

About

A fresh twist on tic-tac-toe, drawn in a warm pencil-and-paper style. Every match starts on a 3×3 board. If the board fills before the match is decided, it expands in every direction. Line up three or more matching symbols vertically, horizontally, or diagonally to score, and reach the target before the CPU. Battle through seven rounds. The target score rises and the CPU gets stronger as you progress. Choose from four game rules: • Normal — Start each round on a new board • Survival — Carry the winning board into the next round • Three-Way Battle — Face two independent CPU opponents using ○, △, and × • Midgame Start — Begin on a randomized 4×4 to 7×7 board Use Full Flip to swap symbols across the board, collect trophies, review match history, save result images, and challenge the final round. Available in Japanese and English. Game Center achievements are supported.

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