Grid Mark Duel

TIVITY

About this game

Grid Mark Duel is a local two-player Tic Tac Toe game built around the classic 3x3 grid. One player takes X, the other takes O, and they alternate turns until three marks line up in a row, column, or diagonal — or the board fills to a draw.

When a player wins, a celebratory animation plays to mark the moment. No timers, no scores carried between sessions — just a clean, focused match between two people sharing the same device.

The app includes four color themes: two light and two dark, each with distinct color palettes. Players can switch themes from the settings screen.

On first launch, a short onboarding screen explains the rules. After that, the game is always one tap away. No accounts, no internet required, no data leaves the device.

Grid Mark Duel works fully offline and stores nothing beyond local preferences.