Megafortress is a flight simulation video game developed by Artech Digital Entertainment and released by Three-Sixty Pacific Inc in 1991. The game takes place in the late 1980s and early 1990s and features three distinct sets of missions: Red Flag (USAF) training exercises at Nellis Air Force Base in Nevada, a fictional series of missions during the First Gulf War, and a special mission which reenacts the plot of the novel Flight of the Old Dog.