The two games that will be offered for free next month through Xbox Live’s Games with Gold program have been revealed by Major Nelson to be Halo 3 and Might & Magic Clash of Heroes.
From October 1st until October 15th, Might & Magic Clash of Heroes will be free for Xbox Live Gold members, then, from the 16th until the end of October, Halo 3 will take over as the offered free game.
I can’t imagine anyone with an Xbox 360 who has yet to play Halo 3, but hey, I’ve been surprised by simpler things in the past.