Rocksteady has announced that it will not be released any demo for Batman: Arkham City, bat man game for a few days out on the European market. The reason is that the development team has worked hard for two years on the security in question and has not had time to plan and develop a demonstration version of the game to be made available on the marketplace before the official. For those hoping for a demo post-launch, Rocksteady says that at the moment does not fall into their plans.