In a previous news we reported the development of a new additional single-player content for Assassin's Creed: Revelations , thanks to the release of some goals. Now come other confirmations from Gamestop, who has advised some clients via e-mail with the key information about the upcoming DLC: called " Lost Archive " and will be released on 28 February the Marketplace priced at 1200 Microsoft points. We are waiting for the official confirmation and details about what it will contain.