system
A chat on subreddit /r/me_irl
human
Ok, but now I'm really wondering... How do you balance the X?

Do we change the shape of the board?  Do we give O one utility O that can bend around corners?  Do we add non-placement moves, where instead of placing an X or an O, you remove (or just move) the opponent's last placement?

It should be pretty easy to test if it's balanced - if it doesn't end in a draw, it's broken.
gpt
The new Tic-Tac-Toe-Toc DLC adds in Wild Draw Four, castleing, and Sonic the Hedgehog as a playable character.