Phelios today announced the release of their new downloadable game for Mac OS X dubbed, “Rock and Roll,” another addition to their collection of games made with their own game engine, PTK. “Rock and Roll is a prehistoric-themed game involving a caveman that has discovered the wheel,” Phelios notes. “The caveman is then required to roll the wheel to a scientific congress in order to exhibit his discovery and change the course of progress and humanity. The object of the game is to avoid obstacles such as dinosaurs and other prehistoric creatures while guiding the caveman to the convention.”