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League of Legends

(LoL) is a multiplayer online battle arena video game developed and published by Riot Games for Microsoft Windows and Mac OS X, inspired by the mod Defense of the... read more

Genres MOBA
Platforms PC
Themes Fantasy
Developers Riot Games...
Status: Released
Release: 27-Oct-2009



(LoL) is a multiplayer online battle arena video game developed and published by Riot Games for Microsoft Windows and Mac OS X, inspired by the mod Defense of the Ancients for the video game Warcraft III: The Frozen Throne. It is a free-to-play game, supported by micro-transactions.

The game was first announced on October 7, 2008, and released on October 27, 2009. League of Legends was generally well received at release, and has grown in popularity in the years since. According to a 2012 Forbes article, League of Legends was the most played PC game in North America and Europe in terms of the number of hours played. As of January 2014, over 67 million people play League of Legends per month, 27 million per day, and over 7.5 million concurrently during peak hours.

In League of Legends, players assume the role of a character, called a "champion", with unique abilities, battling with a team against other player or computer-controlled champions. In the most popular game modes, each team's goal is to destroy the opposing team's nexus, a building which lies at the heart of a base protected by defensive structures. Each League of Legends game is discrete, with all champions starting off each game fairly weak and progressing by accumulating gold and experience over the course of the game.

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League of Legends has spawned a large, active competitive scene. In North America and Europe, Riot Games organizes the League of Legends Championship Series, which consists of 8 professional teams in each continent. Similar regional competitions exist in China, Korea, Taiwan and Southeast Asia. These regional competitions culminate with the annual League of Legends World Championships, which in 2013 had a grand prize of $1 million and attracted 32 million viewers online.


League of Legends is a multiplayer online battle arena where players control a "champion" within short PvP or bot battles. As of August 29, 2014, there are 120 different champions from which to choose, all of which are classified by type (such as assassin, tank, or support), which indicates the champion's gameplay style. Players gain levels from killing the opposing team's champions, controlled by other players or bots, and minions that regularly spawn and attack the other team's turrets, minions, and champions. In the classic game mode, the map is typically divided into three "lanes", which are paths that spawned minions take; the "jungle", an area between lanes where neutral monsters spawn; and "bases", where players spawn and can purchase items. The three lanes are composed of the bottom, mid, and top lanes, which different champions tend to battle on based on their respective types. The jungle is sometimes considered a lane, where some champion tends to roam in order to collect buffs and assist in the other lanes freely. The player earns a small amount of gold every second passively, but can earn more by getting the last hit on minions, destroying enemy towers (referred to as turrets) that guard the lanes, killing neutral monsters located in the jungle, and killing enemy champions. With this gold, users can buy a variety of items to strengthen their champion for the remaining duration of the game. On the classic Summoners Rift, Twisted Treeline, and Howling Abyss maps, the game is ended by destroying the enemy team's last structure on the map, called the "Nexus", from which minions spawn. Other maps have variations of rules and objectives, such as Dominion on the Crystal Scar map, where each team's Nexus loses health if the opposing team controls at least three of the five towers located around the map.

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The League of Legends Store allows players to purchase additional options through "Riot Points" (RP) and "Influence Points" (IP). Riot Points must be bought using real money, while Influence Points are earned by playing the game.

The player is identified as a "summoner" and acts as the persistent element in the game. A summoner's statistics and scores are tracked and are accessible to the player. Summoners gain experience points and Influence Points for each battle they participate in. Experience points lead to persistent level gains for the summoner, up to a maximum level of 30. The benefit of gaining levels is unlocking Mastery Points and Rune Page slots (below) which improve the overall strength of the summoner's chosen champion during battles. The summoner can also choose two "summoner spells", which significantly impact gameplay and have a high cooldown rate while costing no mana. All spells can be improved by masteries (perks that affect gameplay), which are developed in a skill tree. All of the masteries are passive effects, although some augment items which can be activated. They are grouped into offensive, defensive, and utility categories. Masteries can be re-distributed at will between battles.

Similar to masteries, runes affect gameplay in minor ways. Runes are categorized into Marks (offensive), Seals (defensive), Glyphs (magic), and Quintessences (utility). They must be unlocked in the store. To benefit from runes, summoners can arrange them in their Runebooks, which has a limited number of slots for each rune type. However, more rune pages can be purchased from either Influence Points or Riot Points. Combining two equal-tier runes produces a random rune of the same tier, while combining 5 equal-tier runes produces a higher-tier rune.

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Moderation is conducted through a democratic system known as the Tribunal. In this system, player-submitted reports are reviewed by other players on a case-by-case basis. The reviewing players then submit their opinions on the legality of the behavior demonstrated. A consensus renders the decision official. It is notable that players are unable to be permanently banned through this system, since "all permanent bans are distributed manually." Reviewers receive a Justice Rating based on their accuracy to encourage thorough analysis of cases.

Game modes and matchmaking

League of Legends is a session-based game. Matchmaking creates teams with even average Matchmaking Rating (MMR) of the constituent players. MMR uses the Elo formula with proprietary adjustments.

Tutorial mode is a set of two introductory sessions that teach the basics of the game. It is intended to help new players learn concepts such as the controls and the game's HUD.

Custom mode allows players to create games that players manually join rather than relying on the game's matchmaking system to create the teams. In custom matches, the teams can be uneven and may include a mix of players and bots (computer-controlled champions).

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Classic mode is a normal or ranked match in which a team wins by destroying the enemy team's Nexus, which can only be attacked if all lane turrets and the inhibitor in at least one lane and all base turrets are destroyed. Classic mode is played in two different styles: either 5 vs. 5 on a three-lane map, each team's side having three lane turrets and an inhibitor per lane, as well as two base turrets and a Nexus; or 3 vs. 3 on a two-lane map, each team's side having two lane turrets and an inhibitor per lane, as well as one base turret and a Nexus. The map also has three altars, two of which add bonuses to the players, and one that heals the players. These altars are surrounded by a jungle. There are three types of matches in Classic mode:

  • Normal matches are player versus player. Before the beginning of the match, there are several ways for team players to select their champions. Blind pick matches allow both teams to pick champions at the same time, but each team does not learn what the opposing team has picked until all picks have been finalized; players may therefore incidentally choose the same champion as a player on the opposing team, but players may not choose the same champion as another player on their own team. Draft pick randomly assigns a team captain for each team, who then take turns banning three champions each, disallowing both teams from playing those six champions. Draft players then choose their champions in an ordered back-and-forth format. Because both teams can see which champion each player is picking, no player can pick a champion that has already been picked by another player.

  • Ranked matches are available to players that are level 30. Ranked uses a draft pick system exclusively, and players are seeded into a League system based on the outcome of their matches. Winning and losing games influences a player's MMR, which is intended to keep all players' skill levels in any given game as close as possible.

  • Co-op vs. AI mode matches players against a team of bots. Similar to the Tutorial mode, it is also intended mainly as a way for inexperienced players to learn.

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Dominion mode is a normal match played 5v5 on Crystal Scar, a map with a single circular lane that has five neutral turrets arranged in a star pattern. A team wins by reducing the life total of the enemy team's Nexus, which only occurs if the opposing team controls at least three of the five neutral turrets, until it is zero.

ARAM (All Random All Mid) mode randomly picks champions that the players are able to play, allowing up to 2 re-rolls if the player is unsatisfied with their pick. Players may also trade with teammates if both parties own the champions to be traded. The mode is played 5 vs.5 on Howling Abyss, a one-lane map with each team's side having two lane turrets, an inhibitor, two base turrets, and a Nexus. A team wins by destroying the enemy team's Nexus, which can only be attacked if both lane turrets, the inhibitor, and both base turrets are destroyed.

One for All mode was the first limited-time game mode that was available during the 2013 Harrowing, and is no longer available. In this game mode, each team was randomly assigned a captain, who then took turns banning three champions each, disallowing both teams from playing those six champions. Players on each team would then select champions at the same time. Each player was only aware of their own team's choices until all picks are finalized, as with blind pick. However, there was no restriction on choosing a champion that has already been picked. Once all players had chosen, each team was assigned the champion that was picked by the most players on that team, and all players had to play as that champion. In the event of a tie, the game randomly selected the champion. One for All could be played 5 vs. 5 on either the Summoner's Rift or Howling Abyss maps. This game mode later returned at the end of May 2014, with a new twist - both teams were assigned the same champion. This version, called One For All: Mirror Modetook place only on the Howling Abyss (ARAM) map.

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Showdown was the second limited-time game mode, available during the 2013 Snowdown Showdown. Showdown was played either 1 vs. 1 or 2 vs. 2 on the Howling Abyss map. Each team played until one team achieved one of three goals: taking down an enemy turret, reaching 100 team minion kills, or killing the enemy player (or two in 2 vs. 2 matches).

Hexakill mode was the third limited time game mode. Taking place on Summoners Rift, each team had six players instead of the typical five.

Ultra Rapid Fire mode was introduced on April 1, 2014 as the fourth limited-time game mode. It is a Classic Draft game, except that all champions had their movement speed increased, gained gold quicker, could use abilities without using mana or energy, and had more powerful ranged attacks, among other changes. Several champions are unavailable in this mode.

Doom Bots of Doom was the fifth limited time game mode, released on July 17, 2014. It took place on Summoner's Rift, where five actual players would play against five AI enemies with extremely modified abilities, making them extremely dangerous. Players win by destroying the enemy nexus, per normal game rules, and lost if their own nexus was destroyed. There were three difficulty modes available, "1 Bomb", the easiest, "2 Bombs", a medium-difficulty mode, and "5 Bombs", an extremely difficult and hardcore version of the mode.

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The 2010 World Cyber Games Grand Finals in Los Angeles hosted a League of Legends tournament, at which teams from China, Europe, and the Americas competed. The Counter Logic Gaming team from North America won the tournament, earning a $7,000 prize.

The Season 1 World Championships in June 2011, held at Dreamhack in Sweden, featured US$100,000 in prizes. The European team Fnatic defeated teams from Europe, the USA, and Asia to win the tournament and received US$50,000 in prize money. Over 1.6 million viewers watched the streamed broadcast of the event, with a peak of over 210,000 simultaneous viewers in one semi-final match.

After Season 1, Riot announced that US$5,000,000 would be paid out over Season 2. Of this amount, $2 million was to go to Riot's partners, including the IPL and other major eSports associations. Another $2 million was to go to Riot's Season 2 qualifiers and championship. The final $1 million was to go to small organizers who apply to Riot to hostLeague of Legends tournaments.

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After a series of network issues during the Season 2 World Playoffs that led to several matches being delayed, Riot revealed on October 13, 2012, that a special LAN-based client had been quickly developed, designed for use in tournament environments where the effects of lag and other network issues can be detrimental to the proper organization of an event. The LAN client was deployed for the first time during the first quarter-final and semi-final matches played following the re-scheduled matches, and was in use during the finals.

On October 13, 2012, Taiwan's professional team Taipei Assassins (TPA) triumphed over South Korea's Azubu Frost in the Finals of Season 2 World Championship with a score of 3 to 1, and claimed the $1 million in prize money.

In October 2013, Korean team SK Telecom T1 and Chinese team Royal Club"competed at the Staples Center in Los Angeles.SK Telecom T1 won the grand prize of $1 million, and Royal Club received $250,000.

As of 2013, League of Legends is the most popular e-sports game in South Korea.

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On March 23, 2013, the cinematographic studios in Rome hosted the Italian launch of League of Legends. More than 1,500 people were present, along with Riot Games developers, journalists and various guests. The show schedule included a cosplay contest and a challenge match between two Italian clans.

On July 11, 2013, one of the publisher's managers Nick Allen announced that the United States Citizenship and Immigration Services now recognizes League of Legends pro-players as professional athletes and the visa application process is now simplified for them. These changes allow professional players to stay in the United States for up to 5 years.


Riot Games was co-founded by Brandon Beck and Marc Merrill. They partnered with Steve "Guinsoo" Feak, the previous designer of the popular Warcraft III: The Frozen Thronecustom map Defense of the Ancients, and Steve "Pendragon" Mescon, the administrator of the former official support base for the map to develop League Of Legends. Using the original DotA created by Eul (the original Defence of The Ancients map for Warcraft III: Reign of Chaos) as a base, Guinsoo made DotA Allstars by inserting his own mix of content, greatly expanding the number of heroes, added recipes and items, and introduced various gameplay changes. Guinsoo then passed version 6 of the map on to a new developer, IceFrog.

The idea of a spiritual successor to Defense of the Ancients was that it would be its own stand-alone game with its own engine, rather than another mod of Warcraft III, began to materialize at the end of 2005. League of Legends was born "when a couple of very active DotA community members believed that the gameplay was so much fun and so innovative that it represented the spawning of a new genre and deserved to be its own professional game with significantly enhanced features and around-game services."

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Riot Games officially opened its office in September 2006, and currently has over 1,000 people working on League of Legends.

According to Marc Merrill, when creating the various champions in the game, instead of leaving the champion creation to just a few people, they decided to open up the champion creation process to everyone in the company based upon a template where they could vote on which champions made it into the game.

The game was in a closed beta from April 10, 2009, to October 22, 2009. It then transitioned to open beta until release.

In March 2013, Riot Games released a beta version of an OS X client in addition to their Windows client.

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Popular reception

In a release published in November 2012, Riot Games claimed that League of Legends had accumulated 32.5 million players, 11.5 million of whom play monthly, of which 4.2 million play daily, making it the most played online game in the world. In March 2012, League of Legends became the #1 title in Korean PC cafés. In Taiwan, it is estimated that almost 5 percent of their entire population played the game, with almost 1 million players subscribed on the server. League of Legends is also very popular in the Philippines, and it is the second most played game in internet cafés in the country (just behind Defense of the Ancients). As compared to fellow MOBA games Heroes of Newerth and Dota 2, Mike Minotti of VentureBeat considered the game the easiest to learn and to have fastest gameplay pace of the three. According to Riot in October 2013, the game had 12 million active daily players and 32 million active monthly players. In January 2014, the game had 27 million active daily players, 7.5 million concurrent players at peak times, and 67 million active monthly players.

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Critical reception

League of Legends has received generally favorable reviews, and currently holds a Metacritic score of 78 out of 100.

IGN initially awarded League of Legends 8.0 out of 10 in 2009, highlighting an enjoyable game design, inventive champion design with good customization options, and lively visuals. However, the game's confusing launch was criticized: it was felt that the title was released too early, with some features missing and others to be removed. Finally, the reviewer noted that high level players in the game have "little patience for newcomers", though the reviewer believed that matchmaking (not implemented at the time of review) would solve the problem by matching players of similar level together.

Leah B. Jackson of IGN re-reviewed the game in 2014, changing IGN's score from 8.0 to 9.2. Jackson hailed the game as a "firm as an example of excellence", praising the variety of champions, rewarding progression systems, and fast but intensely strategic team play.

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A system to report players who misbehave in-game has been implemented, allowing a player to report others for undesired activities such as verbal harassment, intentional disruption of the game (e.g., 'feeding' the enemy team by dying on purpose), staying away from the game for extended periods of time, and leaving the game. Riot released a peer review system called the "Tribunal" in May 2011. As of October 2012, Riot Games claims League of Legends has over 32 million registrations and averages 12 million players worldwide per day. Global concurrent users online peaked at over 5 million players as of March 2013. In July 2012, Xfire released a report stating that League of Legends was the most played PC game in North America and Europe, with 1.3 billion hours logged by players in those regions between July 2011 and June 2012.

This article uses material from the Wikipedia article League of Legends, which is released under the Creative Commons Attribution-Share-Alike License 3.0.



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