Microsoft Flight Simulator
From Project Magenta Wiki
Microsoft Flight Simulator is most probably the most popular PC flight simulator and is still going strong after many years. One of the secrets of its success is the vast amount of user enhancements which were possible after the introduction of ASD for FS4 (scenery design) and the slew of real tools that followed with FS5.
FS2
FS3
FS4 (with ASD later on)
FS5 (leading to the legendary FS 5.1)
FS95 (first Windows version)
FS98
FS2000
FS2002
FS2004
FSX (Holiday 2006 - around Vista launch)
