Rebel Engine is a fast-paced action game in which Ultima City is under the brutal control of the Concrete Corporation. The skyscraper that serves as a city is both a home and a prison for sentient robots forced to work endlessly for the benefit of a human CEO, known as Entropy. The heaviest and most dangerous drudgery falls to the lower levels, where robots work in toxic and deadly industrial conditions. Right there, at the very bottom, awaits Asimov – a construction bot who wants only one thing: to take revenge on his creators and fight for freedom.