Portal 2: Gabe Newell stepped back from game design during Portal 2's development, because 'he always wanted to be part of the team, but being Gabe and being in his position, that never really worked'

Gabe Newell remains the CEO of Valve, but it's no secret that he stepped back from actively running the company some time ago: he says himself he's been " retired for a long time." Newell now divides his days between va…