Valve’s "Secret Weapon"

Valve is famous for crafting games that are polished and intuitive. But that’s no accident: the developer has a near-religious obsession with playtesting. Learn more, in this video. Support GMTK on Patreon - Watch ad-free on Nebula - === Before you watch === Content warning: Blood, Combat === Sources === [1] Valve reflects on The Orange Box, ten years later | PC Gamer [2] Developer Commentary | Portal [3] Portal Beta 2005 & More 2006 Content | Logan on YouTube [4] Beyond the Box | 1UP Archive: :// [5] Kim Swift - ’Our Journey From Narbacular Drop To Portal’ | IGS 2007 https:/