Kim’s innovative flair was evident even when he was an undergraduate at Seoul National University, where he developed software that helped users practise their typing in Korean. In 1997, he founded NCSoft, which created the massively popular multi-player online role-playing game, Lineage. The company, which went public in 2003, offers online gaming services in over 60 countries. Although the 48-year-old sold most of his shares to rival Nexon in 2012, he is still head of NCSoft.
Net worth:US$1.09 billion