Portal and Half-Life 2 writer Erik Wolpaw has rejoined Valve January 5, 2019 by admin Tweet Erik Walpow has rejoined Valve after working at Double Fine games on the Psychonauts sequel. Erik worked on classics including Portal, Half-life and Left 4 Dead during his previous tenure at Valve. Read more… Neowin Related Posts:Half-Life 1: Ray Traced mod makes Valve's first game…Valve's Half-Life 25th Anniversary Update now live,…Portal and Portal 2 are coming to the Nintendo SwitchReport: Valve is about to announce a new…A quick and personal look back at the launch of…