1) Microsoft Flight Simulator 2020.
2) PMDG 737 or 736 or 738. You will need the very latest versions
3) Internet access
4) A PC running Windows 10/11 64 bit with all Windows Updates applied
5) Fly Engravity CDU (Model 737 [Non-Colour Version] or 747). Up to 3 CDU units of either type are supported. The CDU with the VGA & USB interface and the new Colour CDU are not supported.
6) .NET Framework version 4.7.1+ with all Windows updates applied.