Trying to play steam pc games on my macbook pro So I was wondering if I put parallels on a ssd (256 GB) and kept Mac os x on a HDD and had 16 GB ram would It be good enough to play steam games.I dont care about graphics cards, Im just wondering would parallels run almost like a pc os.
It will run almost like a PC yes.

Also considering you have 16GB of Ram you are good to go! But be careful not to fill up your Hard Drive with the games you install as they can stack up your Hard Drive pretty easily.

I would suggest to install all PC games on an external Hard Drive. Since filling up the SSD could potentially slow down the performance and boot-up speed.