Fliegender Frederick
This is a HID Controller which uses an Arduino Micro to act as a virtual keyboard. Every toggled switch makes it "type" a combination of characters. A game like the Microsoft Flight Simulator 2020 might react to these distinct keypresses.
The device is a rather long build with a lot of parts. The 3D prints here help a lot to build the controller successfully. Prepare to invest a couple of weekends into this build.