FSX/P3D. And it's aiight... I guess... I had this airport from FranceVFR back in FS9 and I can honestly tell you that I am like 95% sure this reuses models from that version of a decade or so ago. Airports are very much the weak suit of FranceVFR but hey, no one else is making these little airfields in France so... Thanks to AG for the tipoff!