QuakeCon 2005 Some FAQS... When: Quakecon is held from August 11-14, 2005. The event starts in the morning on the 11th and continues until noon on the 14th. Where: QuakeCon is held at the Gaylord Texan Resort & Convention Center in Grapevine, Texas (a suburb of DFW). Traditionally Quakecon is held in the DFW area in Texas. Why? because id Software is based there and they're the ones that make this all possible. Why Texas in the middle of Summer? Because the surface of the Sun was already booked.