To make the experience flying flight simulators more realistic there are tons of add-ons available. There are good freeware addons also that we use extensively. Links to sources for first-class extensions for X-Plane 10 ®, Prpar3D v2 ® Flight Simulator X® and Flight Simulator 2004 ® can be found in our link collection. Also planned are some reviews of particularly successful addons. We are always amazed at how well the many of the freeware versions have become. Our thanks at this point go to all the many developers and their work for other flight enthusiasts at completely free disposal!
Ground Services X (GSX)