In 2011, Developers decided to make a contest in which it was necessary to turn the turret constantly. A special map called "Carousel" was developed for this contest. It was assumed that players would not be able to use the supplies on that map (neither purchased, nor bonus boxes). The map was never released. It is worth noting that the main designer of this map was the legendary mapmaker Figishe, who created a lot of maps. Now the map is considered to be lost.