From now until the rest of the month Xbox Live Gold members can download Halo 3 from the Xbox 360 Marketplace.
Boot up your Xbox or head over to their website and download Halo 3 for free, if you are a gold member. A continuation of the 2 free games per month, this is one of the titles announced to be in the Games for Gold program back at E3. Unlike the free games you get with PlayStation Plus, the Games for Gold titles are always yours, even if you let your Gold subscription lapse. You only have until Oct. 31 to get Halo 3 so act accordingly if you don’t want to miss out.