Back in the days when the great plains were ruled by dinosaurs, the local Tyrannosaurus came to you and your dinosaur friends with a proposition you couldn't refuse: help eliminate the neighboring Tyrannosaurus to open up a new food supply, and you and your friends won't get eaten. Your brain is the size of a walnut, so this 'not getting eaten' bit sounded like a pretty good idea. Little did you realize that the neighboring Tyrannosaurus had the same idea. Who will be the next Dino-Czar?
Dino-Czars is a shogi-like game where the object is to capture the opposing Tyrannosaurus. Up to two captured pieces can re-spawn by hatching eggs, but gestation takes time and causes a player to lose tempo. A computer version is available for the Zillions of Games engine.