Combat of Giants: It takes place in the prehistoric age, where dinosaurs lived in a peaceful world overlooked by four guardians. One day, a series of cataclysmic events kills off the guardian dinosaurs, and an evil dinosaur known as Arkosaurus invades the land. Only four dinosaur champions can stop him. Combat of Giants: Dinosaurs 3D is a role-playing video game in the Combat of Giants series. It was developed and published by Ubisoft, and released for the Nintendo 3DS on February 26, 2011 in Japan, March 27, 2011 in North America, and March 31, 2011 in Europe. In the game, players control various dinosaurs and fight hostile dinosaurs to progress through levels.