Crazyracing Kartrider (Korean: 크레이지레이싱 카트라이더) is an online multiplayer racing game that has managed to get well over 230 million users playing. It earns revenues by selling virtual items in the in-game shop, including different types of vehicle and spraypaint. Kartrider not only features fictitious fantasy vehicles but also branded game models based on real-life cars, developed from collaboration with companies such as BMW Korea. There are an estimated 30, 000, 000 users of the Korean version of Kartrider, and over 30% of South Koreans have played the game at least once.