The Dark Knight’s latest adventure puts him in the twisted world of inmates at Arkham Asylum. But that much was known. Release date of Batman: Arkham Asylum, however, was not known. That has changed for good now. Eidos has confirmed that the action-adventure stealth title will be released on August 25, 2009 in North America, from where it will make way to Europe on August 28, 2009. It is further reported that the title will be out for all the three platforms – Microsoft Windows, Playstation 3, and Xbox 360 – simultaneously. Having previously been delayed to late summer from its originally slated June release, Batman: Arkham Asylum hasn’t hit the drag too much. As a matter of fact, gamers will get their hands on the title as soon as E3. Eidos has announced that playable versions of Batman: Arkham Asylum and Mini Ninjas will be displayed at the gaming convention. Also put on show at Booth #2422 will be a sneak peek of Just Cause 2. So we’ll wind up now and report on all that when E3 happens.