Some are demos of fuller simulation packages, such as the Microsoft Flight Simulator X Demo or X-Plane, while others offer the entire package because they are open source such as FlightGear.Īll of the files here are free to download – no registration or subscription is required, however, some of the installation files are quite large so you may benefit from registering for a PRO account (which offers uncapped download speed). Most of them are compatible with Windows, Linux and macOS (or OS X). Listed in this category are a selection of flight simulator packages and games that are free-to-download.