The first expansion set of the game, The Burning Crusade, was released on January 16, 2007. The second expansion set, Wrath of the Lich King, was released on November 13, 2008.
With more than 11.5 million monthly subscribers, World of Warcraft is currently the world's largest MMORPG in those terms, and holds the Guinness World Record for the most popular MMORPG. In April 2008, World of Warcraft was estimated to hold 62% of the massively multiplayer online game (MMOG) market.
To play World of Warcraft online you need to do these steps.
Ok first of all you will need the game and the expansion packs
Next you need to update the game to the latest version (3.0.3). You can let WoW's autopatcher do this for you if you like by simply running the game.
Visit the WoWlegacy main site and register an account following the link at the top of the page:
Once you account if created you can sign up for an account on their forums. Do so here:
Note: It will take up to 10 minutes for your account to become active.
Now you have a working version of WoW with expansion installed you need to connect to a server that won't charge you monthly.
To configure your WoW installation to connect to a private server such as WoWlegacy you simply need to change one file.
Navigate to "\Program Files\World of Warcraft\Data\enUS\realmlist.wtf"
Open the file with notepad/wordpad or some text editor.
Replace the entire contents of the file with this single line of text:
set realmlist 188.8.131.52
Now to play the game simply click on the Wow.exe file located in your "Program Files\World of Warcraft" directory. I advise creating a shortcut to this file somewhere.
Thats it guys, hope you enjoy playing WoW for free. If you feel like saying hi when online my main character is called "Titan".
NOTE: If you already have an existing wow installation for example with The Burning Crusade and do not want to affect it simply Copy the entire world of warcraft directory in your "Program Files" folder (right click the folder - click copy here). Once this is done you can update the original directory to Wrath of the Lich King (3.0.3). This way you will have both versions of the game existing to play on whatever server you like.