Pearl Abyss Corp.\u2019s role-playing hit Black Desert Online has helped make founder Kim Dae-il South Korea\u2019s latest internet-gaming billionaire. Shares of the Anyang-based developer have more than doubled since its September initial public offering, adding about $689 million to Kim\u2019s fortune and giving him a net worth of $1.1 billion, according to the Bloomberg Billionaire\u2019s Index. Kim, who directly owns 39 percent of the company, confirmed his net worth and the size of his stake. \u201cGaming and IT industries require less investment at an early stage compared to other areas,\u201d Kim, 37, said in an email. \u201cSo a lot of things can be tried if you put in time and effort.\u201d The company, which started with just seven employees in 2010 and as of Sept. 2017 had more than 200, plans to release a mobile version of Black Desert toward the end of this month. More than 2 million users have registered for the game in just three weeks. \u201cExpectations in the lead-up to the company\u2019s expansion into mobile gaming with a new game launch have been pushing up the stock price," said Kim Hak-joon at Kiwoom Securities in Seoul. Black Desert, which is played in more than 100 countries, \u201csuits the tastes of overseas players with its offering of more freedom to choose options,\u201d he said. Microsoft Partnership The original online game that hit the market in 2014 has generated sales exceeding 400 billion won ($376.6 million), with about 80 percent of that coming from abroad. Pearl Abyss is looking to expand to other platforms and partnered with Microsoft Corp. to introduce Black Desert to the console market this year. Kim said at least two new games are in development. Kim dropped out of college to pursue his dream of creating games. With Black Desert\u2019s success, he joins the industry\u2019s other self-made billionaires, including Bang Jun-hyuk of Netmarble Games Corp. and Kwon Hyuk-bin of Smilegate Holdings.