Dishonored is a stealth-action-FPS hybrid that is currently being developed by Arkane Studios in France. It looks to be a very atmospheric game that borrows from the worlds and aesthetics of Deus Ex, Half Life 2, Thief and Bioshock 2 to create something truly unique. The above gallery contains concept artworks that hint at what the finished game will be like.
Dishonored casts you as a supernatural assassin driven by revenge. You are Corvo, the once-trusted bodyguard of the beloved Empress. Framed for her murder, you become an infamous assassin, known only by the disturbing mask that has become your calling card. In a time of uncertainty, when the city is besieged by plague and ruled by a corrupt government armed with strange technologies, dark forces bestow supernatural abilities upon you.
The below videos reveal a little more of what the story and the world of Dunwall will be like. It looks like a retro-futuristic Victorian England with steampunk and cyberpunk influences. One hell of a mash-up that looks like it will really work.