Tic-Tac-Toe
Tic-Tac-Toe is a two-player game for about 2 minutes. Place X and O on a 3x3 grid; line up three to win. A setting also unlocks Ultimate Tic-Tac-Toe. Free, no sign-up.
Play over time
Tic-Tac-Toe in 30 seconds
- Set upUse a 3x3 grid. The first player is X, the second O.
- Take turnsPlace one mark on any empty square.
- WinThe first to line up three of their marks across, up or diagonally wins.
- DrawIf all nine squares fill with no line of three, the game is a draw.
At a glance
| Item | This game |
|---|---|
| Players | 2 players |
| Play time | About 2 min |
| Type | Board |
| Ranked play | No |
| Practice against the CPU | Yes |
| Price | Free (no account needed) |
| Rights holder | A public-domain classic game |
| Last updated | 2026-09-23 |
How to play Tic-Tac-Toe online with friends
- Tap "Play with friends"A party is created with a 6-character code. No account is needed.
- Send a link or QR codeShare it on LINE, or just read the code aloud.
- Everyone opens it in a browserOnce 2 players have joined, the host taps "Start".
Rule highlights
Setup, play, winning, and house rules
Setup
- For 2 players. Playing alone, you face the computer.
- The grid has 3x3 (nine) squares. The first player uses X and the second O. The first seat starts; when you play again, the first move switches each game.
- Turn on Ultimate Tic-Tac-Toe in the settings to play on nine 3x3 boards arranged into one big 3x3 grid (81 squares).
How to play
- Classic: on your turn, place one mark on any empty square, in any order you like.
- Ultimate: the first move can go anywhere. After that, the position you just played inside its small board sends your opponent to the matching small board next. For example, playing in the top-right square sends them to the top-right small board. If that board is already decided (won or drawn), your opponent may play in any undecided board instead.
- In Ultimate, winning three in a row inside a small board claims it — the matching square on the big board turns your colour, and that small board can no longer be played. If a small board fills with no line of three, it is drawn and closed.
Winning
- Classic: the first to line up three marks — across, up or diagonally — wins. A full grid with no line is a draw.
- Ultimate: line up three claimed boards on the big grid to win. If every small board is decided with no line on the big grid, the whole game is a draw.
- You may resign at any time; resigning loses the game.
House rules
| Name | Description | Default | Changeable |
|---|---|---|---|
| Board typeBoard typeUltimate is played on a big board made of nine small 3×3 boards. Get three in a row on a small board to win it, and win three small boards in a row on the big board to win the game. The square you play in decides which small board your opponent must play in next. Classic often ends in a draw, so Ultimate suits experienced players. | Choose Classic Tic-Tac-Toe or Ultimate Tic-Tac-Toe. | Classic | Yes |
| Alternate first move | Switch who goes first (X) after each game. | On | Yes |
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FAQ
How many can play?
It is a two-player game. On your own, you can play against the computer.
What is Ultimate Tic-Tac-Toe?
A version played on nine linked 3x3 boards, where your move sends your opponent to a specific small board. Choose it in the settings.
Is it free?
Yes. It is free and runs in your browser with no sign-up.
Can I play on a phone?
Yes. No app is needed — just open it in a browser. You can join the same party as people on a PC or tablet.
Can two people play?
Yes. This game supports 2 or more players.
Can we play without being online at the same time?
Yes. Choose “Turn-based (told each turn)” and you can make one move whenever you like. We tell you when it is your turn. A table ends automatically, with no winner or loser, after 45 days without a move.
Rights holder and physical edition
This is a public-domain classic game. The rules follow the standard reference rules.
Related games
Same type (Board)
Same player count
Last updated 2026-09-23 · Run by Qdan, Inc.