Oops... Looks like you're on mobile or flash is not enabled
We're trying to get some mobile games up and running, but unfortunately our flash games don't work on phone or tablet. How about some hilarious science jokes instead?
Choose from classic 3x3 tic-tac-toe (a.k.a. noughts and crosses), or go a little ultimate with 5x5 and even 7x7 tic-tac-toe. And when you're ready for a real challenge, play in multiplayer mode with both 2-person and online tic-tac-toe.
How to Play
Follow the in-game instructions.
Ruffle Mode
You're trying to play Ultimate Tic-Tac-Toe with Ruffle, which might not yet fully support your game. Ruffle is an Adobe Flash emulator, designed keep Flash games playable after browsers disabled support for Flash in 2021. If your game isn't working, keep checking in, and in the meantime, try one of Experimonkey's fully-functional flash games!
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