X-Plane’s automatically generated scenery (“autogen”) is unique among simulators. It uses data provided by OpenStreetMap to build scenery based on real world features, such as roads and bodies of water, instead of randomly arranging static scenery tiles.
X-Plane 11 will be going a step further by including regional differences in autogen scenery–Europe now has its own unique buildings and roads. The new autogen is based on Germany right now, but more regional differences are planned for updates. This system also provides the basis for scenery developers to provide additional, specific customization through add ons.