Last year, Bethesda announced Dishonored , a first-person adventure that seemed like a cross between Assassin's Creed , Bioshock , and Fallout .

We were intrigued then; now we're flat-out excited. The debut trailer for this ambitious title has arrived today and with it, a whole lot of pleased responses from gamers everywhere.

In development at Arkane Studios, you will have the option of killing from the shadows or facing your enemies head-on (both are displayed in vivid detail in this video), and you will be in a dark, futuristic world with steampunk overtones and guards parading about on giant metal walkers.