Sorry, it's Flight Simulator X.Do you mean the flight sim? It does look a little questionable:
http://www.microsoft.com/en-us/windows/compatibility/win8/CompatCenter/ProductDetailsViewer?Type=Software&Name=Microsoft Flight Simulator X: Acceleration&Vendor=Microsoft&ModelOrVersion=10&Locale=1033&BreadcrumbPath=fsx&tempOsid=win8
Thank you very much!If you check the link i posted above it seems some can run it and some cannot.