you should buy Final Fantasy VII from the Steam store

you should download 7th heaven (its a mod manager)

for approimately every two hours of playtime, you should close the game and spin a wheel to decide what mod you will install next! but don't forget to burn some of your money when you spin the wheel. i hope it lands on a good skin!

just like that you will play roughly ever crisis, it won't be exactly the same but it's similar enough. if you want then you can also buy Crisis Core Reunion on Steam to play the Zack chapters. if you need any more help i'll be available!