Bethedsa has announced the release of Dishonored Rat Assassin, a new and free iOS game which sees you help rid Dunwall of streets of rats - the source of the deadly sickness infecting the city's citizens.
To do so you'll use a number of supernatural abilities that will be featured in Dishonored to complete your task. Abilities include the likes of Bend Time as well as Shadow and Adrenaline Kills, aiding you to slice, shoot your way through the twelve challenges.
You can download Dishonored Rat Assassin for free for your iPhone 3GS, iPhone 4, iPhone 4G, and iPod touch 4 on the Apple iTunes store.
Pre-order Dishonored below.