- Gap City is a fictional city that appears in various forms of media, such as movies, books, and video games. It is often depicted as a bustling metropolis with tall skyscrapers, vibrant nightlife, and a diverse population. Gap City is known for its fast-paced lifestyle, cutting-edge technology, and world-class entertainment. Despite its modern appearance, it is often plagued by crime and corruption, adding an element of danger to the city. Overall, Gap City is a symbol of urban excitement and a hub for dynamic storytelling.