Flight simulator 4 (FSHistory)

"The decompiled version of Flight Simulator 4 is available under an MIT license, and FSHistory adds the supporting code and infrastructure necessary to make this build on modern hardware."

Get it at GitHub - s-macke/FSHistory: Play and Enjoy the History of Microsoft Flight Simulator

Credit: Linux Magazine Pro #254


Having access to the decompiled version under an MIT license opens up so many possibilities for the community.