Interesting fact: although circular chess was played in Persia as early as the 10th century AD, the original rules did not survive. It was only in 1983 that a historian David Raynolds came across the game and started to revive interest about it. A new set of rules was created then, based on traditional square chess.
Circular Draughts (Checkers) and Giveaway Draughts (Checkers)
Interesting fact: there are many variations of the draughts game. International or Polish, English, Brazilian, Ghanian, Canadian, Malaysian, Russian, etc. In the United States draughts are also called checkers. We bring you the International draughts in circular variant. Surprising: at the moment this text is written, there are no other software developers for circular draughts in the world that we could find.
Circular Corners
Interesting fact: corners is a 8 x 8 square board variation of the halma game, which was originally invented in 1884 by an American plastic surgeon George Howard Monks. At that time the game was played on a 16 x 16 checkered board.
Also, in the famous Hitchhiker's Guide to the Galaxy the shipboard computer offers a game of halma.