Possibly the best graphics I have ever seen for a cinematic game trailer. Judging by what i've seen, this game looks absolutely amazing. And when I saw Bethesda, it made it all the better. Obviously it's way too early to judge yet, but you have to admit, that was a fantastically made trailer.
Seriously, those graphics at the beginning! OMMMMGGGG!
The game is actually being developed by a combination of staff members whose previous work experiences include Deus Ex, Thief, Half-Life 2 and Dark Messiah.
Wikipedia wrote:The player controls Corvo, once a legendary guard for the Empress, who seeks vengeance against the Lord Regent who framed him for the assassination of the Empress. Corvo is not only a fine swordsman, master-at-arms, and cunning infiltrator, but also possesses great supernatural powers. The game is presented in open world format as the player can roam The Isles as well as the distant Pandyssian Continent, though the primary setting for the game is the Steampunk-esque city of Dunwall. The game is played in first-person, with an emphasis placed on stealth action and the utilization of gadgets as well as the environment to eliminate opposing forces.  In the Game Informer cover story, it was mentioned that every enemy in the game (even bosses) can be neutralized non-lethally, if the player so chooses. Lead designers Harvey Smith and Raf Colantonio have described the game world as a "simulation"; if the player encounters thugs harassing an innocent passerby, they can be fought off, but the thugs themselves exist within the game world prior to the event, rather than simply spawning in at a designated time or place. If the player encounters the thugs ahead of time, they can be defeated and the mugging will never take place at all.
Corvo has access to swords, daggers, and guns, including powerful but slow pistols and muskets. Some of his supernatural powers are the ability to freeze time for a certain period, and possess the bodies of small animals.
Also part of the game is an entity referred to as "The Outsider". The ambiguous being is described as part angel and part devil, and it is supposedly responsible for all magic in the world. Its motives and nature are shrouded in mystery, but the protagonist, Corvo, made some form of contact with the being, giving him mysterious powers. According to lead designers Raf Colantonio and Harvey Smith, the Outsider walks among the mortals of Dishonored's world.
It just keeps getting better and better. Lets hope the gameplay footage doesn't let us down.