"X-Plane" is pre-packaged with several commercial and military aircraft, as well as basic global scenery, which covers most of the Earth. "X-Plane" also has a plugin architecture that allows users to create their own modules, extending the functionality of the software by letting users create their own worlds or replicas of places on Earth. This is further enhanced by the X-Plane forums, where users can share aircraft, scenery and plugins, and the Scenery Gateway website, which allows users to share airports with other users, which can be eventually integrated into the base product.