Master the Grid.
Outsmart the World.
CrossZero scales classic Tic-Tac-Toe into massive 6×6, 8×8, and 10×10 grid battles. Play on big boards until every cell is full. Every 3-in-a-row your move completes scores +1 — stack multiple triplets in a single move and climb the ELO ladder.
Why CrossZero
Three pillars. One obsession.
Built for players who want depth, speed, and a fair ranked climb.
Massive Grids
Choose 6×6, 8×8, or 10×10 boards. The bigger the grid, the deeper the strategy.
Real-Time Multiplayer
Global matchmaking, private room codes, and a battle-tested AI when matches are quick.
Competitive ELO Ranking
Earn ELO, chain win streaks, and climb tiers from Bronze to Master.
How scoring works
Every triplet counts. Play the whole board.
Forget sudden-death 3-in-a-row. In CrossZero the board fills completely — every time your move forms a line of 3 matching symbols, you bank +1 point. Highest score when the grid is full wins.
+1 per triplet completed
Each horizontal, vertical, or diagonal run of 3 your move closes adds one point to your score.
Multi-triplet combos
A single well-placed cell can close two or three triplets at once — earning multiple points in one turn.
Play until the board is full
The match only ends when every cell is filled. Highest score wins. Equal scores end in a tie.
Game modes
Three ways to play.
Always something to queue into.
Global Matchmaking
Real-time queue against ranked players from around the world.
Private Rooms
Generate a Room Code and play friends instantly.
AI Bot Matches
Practice against named AI opponents calibrated to your tier.
Progression
Climb the ladder.
Earn ELO, build streaks, and unlock new tiers as you sharpen your game.
Top players · This week
- 1QuantumX78% WR2864
- 2VoidRunner74% WR2790
- 3Nebula_O71% WR2742
- 4GridSamurai69% WR2688
- 5RogueAxis67% WR2641
The grid is waiting. Make your move.
Download CrossZero and queue your first ranked match in under 30 seconds.