1 link tagged with all of: entrepreneurship + microsoft + valve + steam + game-developer
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Gabe Newell left Harvard to join Microsoft, where he worked on early Windows releases and a Windows 95 port of Doom. In 1996 he co-founded Valve, led development of Half-Life and built Steam into the dominant PC game platform. He now owns Valve and several research ventures, and is one of the richest figures in gaming.
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