Halo, Halo 2 and Halo 3 being upcoming content to be released on Steam, which raised a few eyebrows since Halo 3 had not publicly been developed on PC, and that Microsoft would be using rival Valve's digital distribution., the Steam registry showed
While some have "We currently do not have plans to release any Halo titles on Steam."that their games are indeed hitting Steam, Microsoft has firmly denied Halo on Steam, stating,
It remains to be scene if "currently" means "no comment" - stay tuned.
Microsoft denies Halo games release on Steam
05 February 2013 | By JonahFalcon