XORSHAC
["ZOR-shack"]
by Joshua Johnson
It's tic-tac-toe... but the board will grow.
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Free play covers rounds 1–6 (through the C round). Premium unlocks all 25 rounds, the six-faced cube board, downloadable round snapshots, and player stats.
Rules at a glance
- Round 1: 3×3 grid with X and O.
- Each round adds a row, a column, and a new letter.
- Win with three of any letter in a row, column, or diagonal.
- Winner scores 10 points per letter in play, plus 1 bonus point for each square still empty — win fast and you keep more bonus points.
- A draw scores nothing; the match moves on to the next round.
- The loser of a round starts the next one.