Global StarCraft II League

Founding and the Open Seasons

The Global StarCraft II League launched in 2010 with three Open Season tournaments. These events featured a combined prize pool of 600 million Korean Won, approximately $500,000 USD, which was unprecedented in esports at the time. The winner of an Open Season could receive 100 million Won. These open competitions served a specific purpose, sorting players into the league's inaugural two-tier system for the 2011 season, establishing the foundational Code S and Code A leagues.

The Open Seasons were notable for their scale and open qualification. Top-ranked players from the Korean Battle.net server, informally referred to as Code B, were allowed to participate alongside invited foreign players. This inclusive start helped establish the GSL as a global competition from its inception, attracting a wide pool of talent to compete for the largest prizes the scene had yet seen.

The Code S and Code A Era

For its first two years, the GSL operated with a clear two-league structure. Code S was the major league, featuring 32 of Korea's top players, with its winner crowned the GSL champion. Code A was the parallel minor league, also consisting of 32 competitors. The leagues were connected by a promotion and relegation system designed to ensure competitive balance.

The initial rules stated that the winner of the Code A tournament automatically qualified for Code S in the next season. Furthermore, the bottom eight finishers in Code S would join the top seven from Code A in a series of Up & Down Matches. Players were divided into groups of five, with the top two from each group earning a spot in the next Code S season. Separate Code A qualifiers were also held before the start of each new season to fill its ranks, continuing the path for new talent.

Format Evolution and Integration into WCS

A significant format change was announced for the November 2011 season. The new system adopted a dual tournament format with double-elimination groups, commonly known as GSL-style groups. A key change was that losing players in Code S would immediately drop down to Code A. This reform meant Code A no longer produced its own champion, instead functioning as a direct qualifier bracket for the main Code S tournament.

The league's role within the broader StarCraft II ecosystem was confirmed in 2013. That year, the GSL and the rival OnGameNet Starleague jointly ran the Korean qualifier for Blizzard's World Championship Series under the banner WCS Korea. When OnGameNet ceased its StarCraft II activities in 2014, the GSL became South Korea's only individual league and resumed operating each WCS Korea season under its own name. From 2015 to 2016, it ran parallel to the new StarCraft II StarLeague, creating up to six total individual league seasons across both competitions in a single year.

Organizational History and Financial Context

The GSL has been hosted by two main entities. From 2010 to 2015, it was run by GOMeXp, originally known as GOMTV. In 2016, hosting rights transferred to Soop, the company formerly named afreecaTV, which has organized the league since. Blizzard Entertainment was deeply involved as a co-producer and co-funder for much of the league's history, though this support was greatly reduced in the 2020s.

Financial figures highlight the league's early impact. From 2010 through the end of 2015 GSL Season 2, GOMTV awarded over 3.6 billion Korean Won, more than $3.1 million USD, from the individual GSL and related Arena of Legends leagues. The reduction of Blizzard's funding led to visible changes, such as the decision to hold preliminary matches online for the first 2023 season. This move was reversed after that season concluded, with studio play restored for the later 2023 seasons.

The Broadcast and Iconic Commentary

The English-language broadcast has been a major factor in the GSL's international popularity. For over a decade, the primary commentary team was Dan Artosis Stemkoski and Nicolas Tasteless Plott, a duo nicknamed Tastosis. Their work was praised within esports, setting a new standard for commentary and becoming a major draw for the tournament itself. Artosis departed South Korea in 2022, with his final broadcast being the 2022 GSL Season 3 final in October.

Since 2023, the English cast has been performed by Tasteless and Ryan State Visbeck. The broadcast platforms have also evolved. Early seasons were shown on GOMTV's own website and media player. After AfreecaTV took over, streaming moved to Twitch and Afreeca's own platform. The current broadcast schedule airs on Mondays and Thursdays, with the English-language versions available on YouTube since 2020.

Associated Events and Special Tournaments

Beyond the main league, the GSL organization has run numerous special events. Super Tournaments have been held intermittently, starting with a 64-player event in 2010 featuring a 202 million Won prize pool. These returned in 2011 and then ran annually from 2017 to 2022, with participants determined by total GSL points earned during the year.

Other notable tournaments included the Blizzard Cup in 2011 and 2012, which invited ten players, half from GSL rankings and half from other major events like MLG and BlizzCon. The GSL vs. the World event was a yearly tournament pitting eight top Korean players against eight elite international players in a team match followed by a single-elimination bracket. The organizers also ran a team league, the GOMTV Global StarCraft II Team League, from 2011 to 2013.

Unusual player support initiatives were also part of the GSL's history. GOMTV operated a foreigner qualification house that could accommodate up to eight international players attempting to qualify for Code A. The house covered all expenses except food before closing in November 2012. An exchange program with Major League Gaming also existed, where MLG tournament winners could earn direct seeds into GSL Code S or Code A.