Log in with your username to reliably save your game progress and achievements
About game
ULTIMATE Tic-Tac-Toe ONLINE is a deep, modern remake of the classic noughts and crosses. Nine small 3x3 boards form one giant 9x9 battlefield, and every move you make decides exactly where your opponent must play next. One misstep can hand them a free board — one clever combo can lock the match.
Features:
- Three online modes: ranked (ELO), casual, and hot-seat on the same device
- Smart bots with three difficulty levels: Easy, Medium, and Hard with deep search
- Fair anti-desync P2P sync — every move is verified on both sides
- 45-second turn timer with reconnect support and automatic skip handling
- Personal ELO rating with leaderboards and bonus-win multipliers
- Clean minimalist visuals, custom sound design
How to play
The 9x9 grid is made of nine smaller 3x3 boards. Your goal is to win three small boards in a row on the big grid — horizontally, vertically, or diagonally.
The twist: the cell you mark inside a small board decides which board your opponent must play in next. If you place your mark in the top-right cell, your opponent has to play in the top-right small board. If that board is already won or full, the opponent may pick any open board.
Rules:
- Players alternate placing X and O. X always starts.
- Win a small board with three in a row to claim it on the big grid.
- Win three claimed boards in a row to win the match.
- Each turn lasts 45 seconds. Run out of time and you skip. Skip your own turn twice in a row and you lose.
- In ranked mode, every win raises your ELO and every loss drops it.
Think two boards ahead — every move is a gift or a trap.