[cowmix]

Back in the 80s, the two programs you ran on a PC clone to confirm if it REALLY was an IBM PC compatible was Lotus 123 and Flight Simulator.

You can now run Flight Simulator in a freakin' browser:

https://archive.org/details/msdos_Microsoft_Flight_Simulator...

[s-macke]

Then you might be interested in

https://github.com/s-macke/FSHistory

There you can play the Flight Simulators 1-4 in the browser. It is even playable on your mobile.