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is the OS an actual operating system or just an .exe file that simulates a desktop enviroment

I haven't got it but it's most likely a simulated desktop environment.

(+1)

It's "simulated". It's technically a collection of games that are linked together through a GUI. Technically anyone can make an "OS" for PV8 by doing the same.

Agreed. Anyone can make an OS-like experience, but it just won't be built off the Linux Kernel.

thanks