Small, beautifully surreal puzzle games. Click on objects to make them interact with each other... unexpected things happen. The aim is to "level up" all of them. It's difficult.

Lovely, expensive, handmade wooden puzzle boxes of all sorts.

Lots of little puzzles involving grids, numbers, lines and so forth. "I wrote this collection because I thought there should be more small desktop toys available: little games you can pop up in a window and play for two or three minutes while you take a break from whatever else you were doing."

"The Institute For Figuring is an educational organization dedicated to enhancing the public understanding of figures and figuring techniques. From the physics of snowflakes and the hyperbolic geometry of sea slugs, to the mathematics of paper folding and graphical models of the human mind, the Institute takes as its purview a complex ecology of figuring.

"Our activities include lectures, publications and exhibitions."

Magnetic 16-piece square puzzles with eye-watering lenticular images on them. <3

Beautiful hand-made metal puzzle cubes. Some are absolutely terrifying to consider assembling.

Challenging indeed.

Familiar-feeling simplistic Flash games, with a twist! (Play a few before reading the "about" page.)

700 free games. Say goodbye to your free time.

How to visit every square on a chessboard using only a knight's moves.