In this GDC 2012 talk, Valve's Erik Wolpaw and Chet Faliszek (not shown, but they're there -- promise!) discuss how Valve created Portal 2, the sequel to the beloved game nobody thought needed a sequel. The talk covers the entire process from inception to the completion and reception of the game.

GDC talks cover a range of developmental topics including game design, programming, audio, visual arts, business management, production, online games, and much more. We post a fresh GDC video every weekday. Subscribe to the channel to stay on top of regular updates, and check out GDC Vault for thousands of more in-depth talks from our archives.

Follow us on Twitter
  / official_gdc  

Checkout our Facebook page for GDC exclusives
  / gamedevelopersconference  

http://www.gdconf.com/