|Type||Subsidiary of NCsoft|
|Industry||Computer and video games
|Headquarters||Bellevue, Washington, U.S.|
|Key people||Mike O'Brien (president and co-founder)
Patrick Wyatt (co-founder)
Jeff Strain (co-founder)
|Products||Guild Wars Prophecies
Guild Wars Factions
Guild Wars Nightfall
Guild Wars: Eye of the North
Guild Wars 2
Rytlock's Critter Rampage
ArenaNet is a video game developer and subsidiary of NCsoft, founded in 2000 by Mike O'Brien, Patrick Wyatt and Jeff Strain and located in Bellevue, Washington. They are the developers of the online role-playing game series Guild Wars.
The founders of ArenaNet were former employees of Blizzard Entertainment who played important roles in developing the highly successful video games Warcraft, StarCraft, Diablo, Diablo II, and the Battle.net gaming network. They left in February 2000 to form their own company. Their new studio was briefly called Triforge, Inc. before changing its name to ArenaNet. The company was acquired by NCsoft in 2002. On 10 September 2008, NCsoft announced the formation of NCsoft West, headquartered in Seattle, Washington. ArenaNet co-founders Jeff Strain and Patrick Wyatt left ArenaNet to take roles at NCsoft West in 2008, and ultimately left NCsoft in 2009.
Guild Wars Prophecies 
Guild Wars is a game that merges the Action RPG and the role-playing video game game genres into one, with competition in both the player versus player (in random matches, teams, tournaments, or guild battles), and player versus environment (in missions, quests, or area exploration) forms. The developers call this blend a CORPG, short for competitive online role-playing game. Important goals of the game are both to minimize the amount of repetitive actions a player has to perform to become a respectable force in the gaming world (called grind), and also to minimize a player's dependency on game items to stay competitive. These are two goals that set the game apart from most MMORPG's, where one hardcore player will gain major advantages when competing against another more casual gamer simply from having played the game more and found better items. In Guild Wars, the advantages in battle will instead come from how well a player picks and uses the character's 8 skills (from a library of hundreds), an art that is hard to master. The game is different from most MMORPG's in that it did not have any additional recurring fees, but bases revenue on standalone game expansions, or "campaigns" (in addition to microtransactions). This structure was discontinued with Eye of the North, which was a traditional expansion pack that required one of the three standalone campaigns. ArenaNet stated that this was because they felt that this format was restricting their ability to add new game mechanics and balance the overwhelming number of skills introduced with each title, and decided to begin work on Guild Wars 2 to address these issues (with Eye of the North bridging the gap between Guild Wars and Guild Wars 2).
Guild Wars Factions 
Guild Wars Factions is the first sequel to Guild Wars, and among other things adds a new world map with accompanying missions, two new professions (the Assassin and Ritualist), several new gaming modes, and "titles" which measures the advance of characters in several tasks. It is sometimes referred to as the second "chapter", with the first one being the released game itself, but then with the label Guild Wars: Prophecies to make a distinction between the chapters. Be aware that this is not an expansion pack, but a stand-alone product, meaning that it does not require Guild Wars: Prophecies to play, although it enhances the player's gaming experience to have both titles.
Guild Wars Nightfall 
The third chapter in the Guild Wars saga, titled Guild Wars Nightfall was released on 27 October 2006. As with the previous chapters, this is a stand-alone product, but it can be merged with the previous campaigns to enhance the gaming experience. This third chapter introduces a new world map, two new professions (the Dervish and Paragon), a new PvP mode, but its most remarkable new feature is the introduction of "Heroes" who travel with the character between missions and campaigns and are fully customizable by the player.
Guild Wars: Eye of the North 
Eye of the North is the first true expansion pack in the Guild Wars series. Released on 31 August 2007, it requires one of three earlier full campaigns, and introduces two new races—the Asura and the Norn—that will be playable in the upcoming Guild Wars 2. It is intended to bridge the gap to Guild Wars 2 by means of a Hall of Monuments, a mechanism that allows transferring achievements in the original series to the sequel.
Guild Wars 2 
Announced in March 2007, Guild Wars 2 is the sequel to the current Guild Wars series of games. The game is set around 250 years after the events in the original series and contains several new features, consisting of a more persistent world (as opposed to mostly instanced), dynamic questing, a personal branching storyline, and an updated graphics engine. On the morning of 20 August 2009, ArenaNet released the first trailer for Guild Wars 2 on their website. Closed in-house beta testing started in December 2011 and press beta weekend events started being rolled out in March 2012. Beta weekend events began in April 2012 and were open to those who pre-purchased the game, those who received an invite by signing up and those who obtained a beta key from a giveaway. On 28 June 2012, ArenaNet announced that Guild Wars 2 would be released on 28 August 2012; meanwhile, people who pre-purchased the game received a three day headstart and began playing three days earlier, on 25 August 2012.  In its first 2 weeks of sales Guild Wars 2 sold over 2 million copies. 
- "About ArenaNet". Arena.Net. Archived from the original on 7 March 2007. Retrieved 2007-03-25.
- "Contact ArenaNet". Arena.Net. Archived from the original on 5 March 2008. Retrieved 2008-02-21.
- "English Community Manager Aidan Taylor in the official Guild Wars 2 Forum". 2013. Retrieved 2013-01-16.
- "Triforge Games Will Be New Venture For Senior Blizzard Programmers". ArenaNet press release. Retrieved 2008-08-09.
- "NCsoft Announces Formation of “NC West”". NCsoft. 10 September 2008. Retrieved 2008-09-11.[dead link]
- "Guild Wars 2 Official FAQ". ArenaNet. Retrieved 2012-04-14.
- "Guild Wars 2 First Official Trailer". ArenaNet. Retrieved 2009-08-20.
- "Guild Wars 2 arriving August 28". GameSpot. 28 June 2012. Retrieved 2012-08-25.
- "Guild Wars 2 sales now over 3 million units worldwide".