Source code links: Rowan's Battle of Britain (flight sim): https://github.com/gondur/BOB_Src Rowan's Mig Alley (flight sim): https://github.com/gondur/mig_src Free Falcon (flight sim): https://github.com/FreeFalcon/freefalcon-central flightgear (flight sim): https://www.flightgear.org/download/source-code/ speed dreams (sim racing): https://sourceforge.net/projects/speed-dreams/files/