About

Long-time Microsoft developer who became the billionaire owner of independent video game company Valve Corporation. He's helped the company release such popular games as the Portal series and the Team Fortress series.

Before Fame

He chose to drop out of Harvard University.

Trivia

He developed Steam while working on Half-Life 2. He was called A Name You Should Know by Forbes in December 2010.

Family Life

He has two sons with his wife Lisa Newell.

Associated With

He earned a small fortune while working with Bill Gates at Microsoft, where he played an instrumental role in the development of the first three Windows operating systems.