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A LAN party is a temporary gathering of people with computers or game consoles, between which they establish a local area network (LAN), primarily for the purpose of playing multiplayer video games. The size of these networks may vary from the very small (two people) to very large installations. Small parties can form spontaneously, but large ones usually require a fair amount of planning and preparation. As of 2010, the world record for the size of a LAN party is 12,754 connected systems, set at DreamHack, in Jönköping, Sweden.
LAN party events differ significantly from LAN gaming centers and Internet cafes in that they generally require participants to bring your own computer (BYOC) and are not permanent installations, often taking place in general meeting places or residences.
Small LAN parties 
Usually, smaller LAN parties consist of people bringing their computers over to each other's houses to host and play multiplayer games.
These are sometimes established between small groups of friends, and hosted at a central location or one that is known to all participants. Such events are often organized quickly with little planning, and some overnight events, with some stretching into days (or even weeks). Because of the small number of players, games are usually played on small levels and/or against bots.
People bring their own PC/Laptop in small Lan party. A small LAN party requires either a hub/switch, with enough ports to accommodate all the players or if all the computers have Wi-Fi capability, an ad-hoc network may be set up. This allows two or more computers to connect over a wireless connection, thereby eliminating the need for a wired network, a fair amount of power, and suitable surfaces for all the computers. Providing refreshments is often also a duty of the host, though guests are usually asked to contribute. In larger parties where participants may not all know each other personally, an entry fee may even be charged. Another tradition of some small groups is to purchase large amounts of fast food for consumption over many days. Many LAN participants will also bring food or drink to consume over the course of the party—though they can be held at any hour, many LAN parties begin late in the evening and run through the next morning, making energy drinks a popular choice.
When some of the participants cannot be present or when merging a few LAN parties together, VPN software such as Hamachi can be used to arrange computers over the Internet so they appear to be on the same LAN.
Normally, the host will host the games but sometimes at very small LAN parties (e.g. 2 or 3 people) all participants will connect to an online internet server and add a word in front of their name to tell everyone else that they are a clan or group. At bigger LANs (e.g. 5 or more people) the host or a friend of the host will use a spare PC as a game server to serve all the participants. Usually the host and/or the owner are administrators.
The group can play together in another server as well if they wish as long as they are in the same LAN.
Console-based LAN parties 
While traditional LAN parties have solely consisted of computer gaming, the widespread adoption of network-centric console platforms, such as Xbox 360 and PlayStation 3, has led to an evolution in LAN parties.
Console-LAN attendees need only their console, games, and television to garner the same local gaming experience as their computer-based counterparts. Many popular multiplayer games for the console have also been ported to the PC (e.g. Battlefield: Bad Company 2) and vice-versa (i.e. Halo: Combat Evolved). Developers have given consumers the choice to enjoy the same multiplayer games on multiple platforms, paving way for an alternative stage in 21st-century LAN parties.
Larger LAN parties 
Many commercialized parties offer various tournaments, with competitions in such games as StarCraft, Warcraft III, World of Warcraft, Counter-Strike: Source, Unreal Tournament, Team Fortress 2, Kirby Air Ride, America's Army, Garry's Mod, and games from the Quake, Left 4 Dead, Call of Duty, Battlefield, Doom and Halo series. Prizes may be awarded to winners, and can include computer hardware such as overclocking kits, cases, lights, fans, graphics cards and sometimes even complete computers (often considered humorous as typically the winner of the competition would already have (and be competing on) a custom PC far superior to the prize).
The duration of events is not standardized; organized parties often last for a weekend.
Big LAN parties often offer a quiet place to sleep, shower, and eat, as well as hired security, alternative entertainment (such as music), and a dedicated support crew, as well as a professionally managed network including a connection to the Internet. Catering might come in the form of a bar, delivered food such as pizza, or nearby shops. Some parties come fully catered in the form of regular barbecues or even employment of a catering staff running a public canteen.
Gaming clans — groups of gamers that often play in team games—often use these gatherings to meet one another, since they typically play together over the Internet between other parties with little real-world contact. Their goal is often to win tournaments. Clans are often in "ladders" where they move up after winning a match. As well as counting for standings in national and international gaming leagues such as the CPL there are regular events such as QuakeCon in which the very best players from around the world compete against one another, much like in popular sports. Practice matches are usually held prior to a match so competitors can get a rough idea of what they are up against.
Some attendees also use these parties for the purpose of file sharing. Copyright infringement via file sharing is often discouraged or forbidden by the larger parties. However, enforcement is rare and spotty due to the time involved and often a lack of desire by organizers. Some LAN parties actively support file sharing for legitimate purposes (game patches, updates, user contributed content), and may run Direct Connect hubs or other P2P service servers. One of the main reasons for running such servers is so file sharing can be monitored/controlled while standard Windows file sharing (SMB/CIFS) can be blocked, thus preventing the spread of SMB/CIFS-based viruses. Most P2P setups used at LAN parties also have a 'centralized' chat area, where all members of the LAN party can converse in an IRC-like environment.
There are also other kinds of parties not referred to as "LAN parties" where temporary LANs are built, but are not used as a main attraction. Amongst these are demoparties such as Assembly and hacker conventions such as DEF CON.
In the traditionally active demoscene countries, such as those in Northern Europe, the LAN party culture is often heavily influenced by demoparties. This is due to the fact that many of the largest demoparties were already well established in the early 1990s and their facilities were also suitable for large-scale LAN party activity. This eventually led gaming clans and other similar groups to attend these events and regard them merely as large LAN parties. On the other hand, it is not uncommon for "pure" LAN parties in Northern Europe to organize some demoscene-like competitions in areas such as computer graphics or home videos.
Many computer companies, including NVIDIA, Cooler Master, Razer, Cyber Snipa, Antec, Quixby, Corsair, Alienware, SteelSeries, and Thermaltake, offer sponsorship packages to large LAN parties, with funding, prizes, or equipment given in return for advertising. Many large-scale LAN parties seek such sponsorship, in order to reduce operating risk (often the organisers risk losing tens of thousands of dollars) and provide prizes for attendees.
LAN parties have their own unique culture. Case modding enthusiasts often show off computers with flashy aftermarket lighting, LCD screens, enhanced speakers, and many other computer accessories. Highly caffeinated drinks, termed energy drinks, are very popular in these events to improve concentration and stamina, since LAN parties often run into the early morning hours. Large parties can last for several days with no scheduled breaks. Often sleep is compromised to play throughout the night and into the next day, although there is often a designated room separated from the LAN party to sleep.
Notable events 
- Platform LAN, a new monthly LAN series at the heart of Hull, England with backing from the likes of GAME UK Ltd and Ubisoft it is set to be one of the UK's most prestigious LAN events.
- Platform Expos, an up-and-coming annual expo featuring one of the UK's best LAN event's. Next due on the 28th and 29th of June 2013 covering 2 days with the LAN event being managed by Platform LAN. Platform 2013 is set to follow up on the progress made in opening up Hull, England to the Competitive Gaming World.
- RFLAN, is the largest currently active LAN event in Australia, running events for up to 600 people 4 to 5 times per year. They are also one of the oldest active events running over 40 events over the last 12 years as of 2012.
- GGFLAN, GGFLAN is one of the largest Australian LAN gaming events with the latest 10Gigabit network for users and servers.
- PDXLAN, is one of the largest family and friend oriented annual North West Lan Party in the US.
- DreamHack, the largest LAN party in the world. Held twice annually in Jönköping, Sweden.
- The Gathering, the world's largest computer party, is not officially categorized as a "LAN-party" but is, in terms, the world's second largest computer happening. Held in Hamar, Norway.
- Gaming Scotland, the largest Scottish LAN party held at the Dobbie Hall, Scotland, United Kingdom
- Assembly demo party, another very large party. Held annually in Hartwall Areena, Helsinki, Finland.
- QuakeCon, largest LAN party in the United States and the largest free LAN party in the world. Held annually in Dallas, Texas.
- Lanwar, one of the largest LAN events in the United States. Held quarterly by the same name, and annually as MillionManLan.
- Cyberathlete Professional League, formerly one of the largest LAN events in the United States.
- Minho Campus Party, LAN party held annually in the Minho region, Portugal.
- Lan ETS, the largest LAN party in Canada. Held in Montreal, Quebec.
- Fragapalooza, one of the largest LAN parties in Canada. Held in Edmonton, Alberta.
- Campzone, the world's largest outdoor LAN party held in the Netherlands.
- Pittsburgh LAN Coalition, holds Iron Storm, a major semi-yearly LAN in Pittsburgh, Pennsylvania.
- Organised Chaos, Africa's largest monthly LAN party (1200 people). Held in the Bellville Velodrome in Cape Town, South Africa. Hosted Over 2 days in the Weekend.
- NAG LAN @ rAge, one of the largest LAN parties in Africa. Held annually at The Coca-Cola Dome. About 2580 expected in 2012.
- BYOC, India's Largest LAN Party held in New Delhi, India. A very popular gaming event of India by Xtreme Gaming.
- MatCH Lan-party, a large LAN-party in Delft, Netherlands.
- ChicagoLanParty.com (also known as The Afternight Lan Party), held the longest running weekly LAN party from 1998 until 2003 only canceling 2 dates in their full run and sometimes running multiple day events. Finishing with 500 LAN parties in a row.
- iSeries, hosted by Multiplay in the United Kingdom, consisting of over 2000 players. The iSeries is held 3 times a year.
- Spektrum, hosted by Basement LAN in Lund in southern Sweden.
- Cyber Fusion 2009, helds in Cyberjaya, Malaysia. Notably holds the Guinness World Record for the world longest 40 hours LAN party in 2009.
See also 
- "DreamHack, the world's largest computer festival". 2010. Retrieved 2010-12-27.
- Kalke, Rushmie (22 October 2006). "CPUs get revved up in Hudson". Worcester Telegram & Gazette. Retrieved 2006-10-25.
- Cooler Master
- Antec Inc.
- Corsair Community: LAN Parties
- Alienware LAN Sponsorship Program
- Thermaltake LAN Party Request
- Dan Evans, Nathan Edwards (March 1, 2006). "Build It: The Ultimate Game Room; Stun your friends with the best place on earth to play games, including an amazing (and amazingly expensive) LAN party scoreboard. We show you how". PC Magazine 25 (5).
- "As In Risking Ours, For Science". The Life. 2005. Archived from the original on 2006-10-18. Retrieved 2006-11-08.
-  Platform Expos site.
-  Platform Expos site.
-  RFLAN.
-  GGFLAN.
-  PDXLAN.
-  Guinness World Records site. January 7, 2008. Retrieved August 29, 2008.
-  The Gathering Tech:Server - TG is not a LAN(-party).
-  Falkirk Herald Website. 31 August 2006. Retrieved 13 January 2011.
|Wikimedia Commons has media related to: LAN party|
- LAN Party Guide - Collaborative Community Wiki
- LAN parties at the Open Directory Project
- Woot Events - Worldwide LAN Party list
- Australian LAN Party Information
- New Zealand LAN Eventy/Party Information
- lanlist.org - A List of LAN Parties, with a focus on the UK
- LAN Party EH - A List of LAN Parties, with a focus on Canada
- Pittsburgh LAN Party Coalition
- Spain Lan Party
- LAN Party guide at Tom's Hardware Guide
- Zoopy Video article on Organised Chaos