PC Games on my Macbook

Before you say anything, I have googled it myself and searched for it here, I'm still somewhat unsure which is why I'm asking.

I have PC versions of Warcraft III, Starcraft, Rollercoaster Tycoon, and a few others, not so new games, like that.

What is the simple and easiest way to play those games on my Macbook? I don't want to have to install Windows on my machine to do this. I don't quite understand it.

Thank you for your help.

You will have to install Windows. You can put it in Boot Camp, which will make you restart to use Windows, or Parallels/VMware, which will let you run it the same time as Mac OS X, and even run Windows apps side by side with OS X ones.

There is no other way to do it.

Warcraft III and Starcraft are hybrids, they will install on OS X.