Before he developed a string of venerable flight sims for LucasArts (Their Finest Hour, X-Wing etc.), Larry Holland designed this exceptional NASA mission simulator that gives you the chance to build a space station. This gargantuan task requires astute planning of shuttle launches over the next 15 years to carry the necessary components for the station.

NASA's help in the game shows in the excellent realistic factors, from budgetary concerns to R&D projects you can take in hopes of making discoveries that will save lives and time. An excellent simulation that dovetails nicely with Virgin's excellent Shuttle space shuttle sim years later.