Csilla was a frozen ice planet in the Unknown Regions, controlled by the Chiss Empire. Its population is eight billion. Csilla may be cold but, there are still some cities and suburbs there. 98% of the houses there have heating systems. There is also a lot to do there. There are many sports such as snow boarding, sled riding, and snow sliding (sliding on snow in a special outfit). There are also many arcades, camps, hotels, stores, movie theaters, theaters, dancing arenas, ice skating rinks, restaurants, and fast train rides at Csilla. A common Csillan saying is "We know how to make fun."