The Easter egg was introduced along with the games 40th Anniversary update, which went live on Friday.
The secret was posted in the Flight Simulatorsubredditby HughesMDflyer4, who provided instructions on how to find it.
You can now play the original Microsoft Flight Simulator inside Microsoft Flight Simulator
Microsoft Flight Simulator players have uncovered a secret that lets you play the first four games in the long-running series inside the cockpit of a plane.
