After discovering a variety of major bugs in Halo: The Master Chief Collection, Microsoft and 343 Industries pushed the release of Halo: Spartan Strike, a twin-stick spinoff, from December 2014 to “early 2015.” Today, the game was quietly released for the PC (via Steam), Windows 8 tablets and PCs, iOS devices (iPod Touch, iPhone, iPad), and Windows Phone 8. Halo: Saprtan Assault, which was originally released in 2013, also makes its iOS debut today as part of the Halo: Spartan Bundle.
Developed by Vanguard Games, Xbox Wire says Spartan Strike takes place during Halo 2 and serves as a training ground for Spartan soldiers:
Halo: Spartan Strike tells a compelling new story in the Halo universe set during the events of Halo 2 on New Mombasa in 2552. As a Spartan supersoldier in a classified ONI simulation, delve into 30 challenging missions while leading UNSC troops through cities and jungles with an all new arsenal of weapons, abilities and vehicles.
Players who advance through Halo: Spartan Strike’s Achievements will be able to unlock an exclusive Emblem, Nameplate, and Avatar in Halo: The Master Chief Collection. So I guess it’s got that going for it.