Portal, Half-Life 2 co-writer Erik Wolpaw has left Valve
Stephany Nunneley-Jackson
7 years ago
Minecraft, Day Z represent the "promise" of games, say Schafer, Wolpaw
Brenna Hillier
11 years ago
Portal 2's lost plot elements include turret marriage
Portal 2's plot partially inspired by panic
12 years ago
Valve writer talks about why Chell doesn't speak in Portal or Portal 2
Portal 2 releases - Unreview, uninterview, unstudiovisit
Justin Kranzl
Wolpaw: Players don't care about Portal's Chell
13 years ago
Portal 2 won't require "twitchy ninja skills" to solve
J.K. Simmons lends voice to Portal 2's Aperture Science president and founder Cave Johnson
Valve plans to let us in on more of the Portal 2 story soon, says Wolpaw
Portal 2 could have skipped out on portals, says Valve
"Chaos" canned Portal 2 competitive multiplayer
Patrick Garratt
Valve: No cake meme jokes in Portal 2
Johnny Cullen