When Parallels broken, it's cached memory dumps will fills your HDD space and sometimes it breaks your Bootcamp files while working through MacOS. If you try harder to play on games, you'll definitely break Parallels and Bootcamp.
Maybe Windows default Games can be played. You can't play games on Parallels, it trys but mostly can't. It's like a lite version of your bootcamp. Parallels seems like remote connection of Bootcamp, but it's not. Why it happens? Parallels is a simulation OS besides Bootcamp.
