Flagship Studios claims that Hellgate: London is the most successful online game launch in Korea over the last three years.

Flagship bases this bragging on the fact that within the first two weeks of the open beta test, there were one million accounts registered. While Flagship points out that Hellgate: London was the first online game to use a monthly subscription model in three years, it appears to be basing its claim of "most successful" on registered beta accounts rather than actual financial success.

(see original source)