If you're just dying to get a taste of Dark Messiah of Might & Magic, the upcoming first-person role-playing game from Arkane Studios and Ubisoft, you'll find some respite in the form of a single-player demo and a brand new trailer, both available online now. To get your hands on these downloadable goods you'll have to use Valve's downloading service, Steam. Both the demo and the trailer are free. Dark Messiah of Might & Magic will be released later this year for the PC. The full game will be released both in retail stores and in downloadable form on Steam.