Microsoft Flight Simulator 4.0 is a 1989 video game developed by subLOGIC and published by Microsoft.
Microsoft Flight Simulator 4.0 is a game in which the ability to adjust flight characteristics and create experimental aircraft are among the new features added.[1]
Russel Sipe reviewed the game for Computer Gaming World, and stated that "In the computer entertainment industry there is an informal rule that determines the value of a product: if the product gives you one hour of playing time per dollar spent it is worth the price. By that formula FS4 is, without a doubt, an exceptional buy in computer entertainment."[1]