Tux for OS X!
Super news! A group of object oriented software engineers known as Develux has OS X ports of three Tux the (Linux) Penguin games to OS X: Tux Racer, Tux Kart, and Tuxedo T Pengiun - A Quest for Herring. These are some of the finer OpenGL games developed for Linux, and now we can give 'em a shot! The OS X translation is quite impressive. Hit their site and grab your downloads (screenshots there as well). We're pretty impressed.