There are two main ways games typically come, the first is in an iso form and the second is in RAR parts.
An iso is like a virtual copy of a CD that can be mounted into things called virtual drives. In other words applications that trick your computer into thinking a disc has been inserted when you mount these fake CD's or "images". A popular tool to mount these images is called
Daemon Tools. So torrent the iso(for big games it will take a long time) of the desired game, mount the image and it should install.
The second is in RAR parts. RAR is a codec for compressing files like .zip or .7zip but each part is separated into parts. Once you torrent it, right click on any of the parts and press extract all. (You need a program that can unrar these like
Winrar) it should give you one folder and inside is typically all the files you need to run the game. Press the exe file and play!
Remember: Mounting an iso or using an exe can be dangerous. Remember to be safe, virus scan the files, and check the user's credentials.
If you find these methods don't work properly, the game is packaged in a different way, or you need more clarification feel free to ask.
