We currently offer a massive range of downloads for FSX, as well as older flight simulator add-ons for the ever-popular FS2004, FS2002, CFS3 and now becoming ever popular with dediced virtual aviators is Laminar Research's X-Plane series.
The Space Shuttle that Captain Sim released some time ago is now also available on SimNetwork Market. The Shuttle project is meant to gauge interest in the 'space topic' more than anything else. The Shuttle is a model with many working features, and it can be landed on two bases that are also included. Check out screenshots and pricing for the two separate products, FS2004 or FSX !