[1] It was notable for reaching mass popularity in South America, breaking the record of most played online game in Brazil.

[3] Their first game was Elsword, which began open beta testing in North America on April 27, 2011, and released on July 2, 2014.

Although Elsword received some criticism for pay to win systems,[5] the game was generally well-received, and peaked with 2,500 active players on Steam in August 2013.

KurtzPel Bringer of Chaos was first announced in the South Korean game exhibition G-Star 2017,[6] and entered worldwide Steam early access on April 30, 2019.

KOG Games also briefly published HeroWarz, a MMORPG developed by A.Storm, in July 2016, but the servers were closed a few months later.