He Windows 8 and Windows Phone 8 downloadable twin stick shooter was released for those platforms way back in July with a promise that a Xbox 360 version would be coming with it later confirmed that a Xbox One version would be released as well.
If you happened to have purchased the Windows 8 or Windows Phone 8 version of Halo: Spartan Assault already, you will be able to cash in my getting the Xbox One version for only $4.99 or if not you will be stuck paying the $14.99 price tag.
As for the Xbox One version we are told that it runs at 1080p at 60 fps and it will add a new co-op mode and carry 1000 points in Gamerscrore according to Microsoft’s own Major Nelson.