Trion Worlds, publisher of the hit MMO Defiance, will be releasing “Silicon Valley,” an all-new, completely free world expansion to its ever-growing game, on Tuesday, August 5. The Silicon Valley content raises all new questions for the Defiance universe. Within the world expansion, players will find Karl Von Back has disappeared into Silicon Valley with his EGO-imbued followers, but it’s not the paradise they promised. The valley is overrun with Grid, and a strange cult, the Pilgrims of the Guiding Light, have taken hold in locations across the zone. As all new mysteries unravel, the populace of Silicon Valley calls for help, and only ark hunters have what it takes to face the trials ahead.   Defiance recently became free-to-play on PC and will be free-to-play on Xbox 360 and PS3 later this year.   An all-new trailer for the Silicon Valley content will be released on Tuesday alongside the expansion.   For more information, visit defiance.com.