MEmu emulator is used to run all apps and games of android smartphone on to you pc without installing any other os. emulator have many feature major one is virtual machine. it allow you to create a virtual machine system in which you can run any smartphone game apps etc.
minimal requirement is 4 gb ram 512mb intel built in card a good speed processor i recommend at least core2quard or above like i3, i5, i7 generation also increase the speed of emulator so how much advance generation you have it ill run more nicely in that. also ssd and m2 drive more reliable speed platforms.
emulator file is totally offline so download and install it no cash survey etc no etc dumb software mounted so feel free to download and install.
apps you can install in two way one from playstore using google id second just download apk file and it ill run directly in to its emulator. ok no more details now download it and find yourself what are new and advance feature Allah bless us all Ameen