Robot Commando

Robot Commando was the twenty-second book in the Fighting Fantasy series of gamebooks. In it the reader is a dinosaur rancher in the country of Thalos on a distant planet. Thalos' mortal enemies, the militaristic Karosseans, unleash a weapon that puts all of Thalos--except the reader--into a deep sleep, leaving the land free to be invaded. The reader controls a variety of giant robots to battle dinosaurs and Karossean invaders while looking for a way to rouse his countrymen. Robot Commando is unique in the series for being one of the few entries to feature multiple successful endings.