A game of Tic-tac-toe. Top left is whose turn it is, and the winner is displayed on the bottom. Click inside a box, if there's nothing in it, to turn it into your box. Three boxes in a row (Up-down, left-right, diagonal) of the same type wins! It's randomly chosen who starts. It is possible to tie.
100% pen, 100% me. Just a quick game I made, it's pretty simple so there shouldn't be any glitches.