I thought this question has been answered million times :v
Have you ever heard about "Bluestacks"? It is a software turn your computer or laptop into an android device.
Visit it's official site to dowload: http://www.bluestacks.com/download.html
Now, it's time for you to dowload your favorite mobile games in apk files.
Let me take my favorite app as an example:
Ez iCam (You can visit this site to dowload apk files)
After dowloading, right click on the apk file --> Open with:
Then, click on "Browse" --> Bluestacks folder --> HD-ApkHandler:
Finally, check your game on Bluestacks:
And enjoy your game! :D
That's the how you can play mobiles games on your PC or laptop.
Hope it helps!