First, to use Torrent. What is a Torrent?
Torrent is originally created by Ludvig Strigeus (ludde), and is currently maintained by a team of developers at BitTorrent, Inc. There are many Torrent Clients/softwares such as Bittorent, Utorrent, Bitcomet, Transmission, Azureus, etc. By using these clients, you can download games for free although it is not guaranteed to be safe from virus/trojan, but you can work it out by scanning it with antivirus afterwards, and not all torrents are infected.
To download the games using Torrent, you must first go to a torrent website, just type the name of the game you want and add the word torrent behind it, example: Fable 3 torrent
in google or yahoo! or other search engine.
Then enter the website and download a Torrent client, i suggest to download Utorrent since it is lightweight and do not disrupt your bandwidth.
Then click on the download torrent file. Torrent file and torrent client are different. The torrent file must be opened with a torrent client.
Install your Torrent client that you have downloaded then open the torrent file by double clicking on it or dragging the file to the opened Torrent client software.
Then you are good to go!
Another way is to look for free downloadble forums. Good downloadable forums such as www.leegt-games.com, or www.allsmartgames.com, etc are spread all over the net.
They use file hosting server as their downloading source.
To download from these forums, it is best if you download a download manager first, such as FreeRapidDownloader, which usually you can also find in the forum under software. These downloaders make your life easier and downloading faster.
But if you are new to this, it is better to learn the manual way first. Go to the forum and then choose the game you want to download.
Usually you must register first before you can see the download link. Some forums even ask you to reply and say thanks first before the links show up.
Afterwards, copy and paste the link on the topic to the address bar on top of your browser and press enter. Then you will directed to the file hosting service, from there you can download to your computer directly.
Most files are zipped or rar-ed, so you also must learn to use Winzip and or Winrar. There are help desk and tutorials in good free downloadable forums. Some of the really good ones even get you wonder whether these people got paid for this or are doing it for free. Because your questions are usually answered within 24 hours! And the games are complete it is almost like a game store, with pictures and all but it is totally free!
These downloadable forums are better than torrents since good forums are virus free. They have admins who controlled the community postings and replies.
But sadly lately almost all the file hosting servers are blocked in China...