According to the Halo: Waypoint website. Halo: Spartan Assault will release today July 18th, 2013 at 4PM PST for Windows 8 PC's and Verizon Windows Phone 8 devices. And will be released to all other Windows Phone 8 devices on August 16th. (USA Only, Outside the USA all carriers will receive the game today July 18th)
Available today at 4pm PST only for Windows 8 PC and tablets and Windows Phone 8, Halo: Spartan Assault is a new top-down action shooter set between the events of Halo 3 and Halo 4. This new chapter has you experiencing the first missions of the Spartan Ops program and dives deeper into the backstory of Human-Covenant wars. Play through the eyes of either Commander Sarah Palmer or Spartan Davis stationed aboard the UNSC Infinity as they fight never-before-seen battles against Covenant forces.
For more information including videos, screenshots, and more check out the Halo: Spartan Assault page! http://www.halowaypo...ospartanassault