FSX/P3D. Well it's a CRJ! What can I say? You want a CRJ or not? At least with this thing you can fly into any airport without any performance or memory issues right? Don't expect much from it but it's a step above all the freeware and default CRJ's you have been playing with. Yes you have, you just don't want to be made fun of so you keep it to yourself. So go ahead and buy this thing, I won't judge. Promise! Now available for $26 bucks and be sure to read the reviews first.