Okay, so you were a little late to the Dishonored party. That means you missed out on the pre-order bonuses.
But have no fear. As revealed at the Bethesda blog , all the pre-order DLC content is being gathered together in the form of The Void Walker's Arsenal pack. It'll be available on May 14 on the PS3, Xbox 360 and PC for only $3.99.
And with three separate packs included, it's like a buck a pack. That ain't bad. There's the Acrobatic Killer expansion, which boosts drop assassinations and gives you increased agility, the Shadow Rat pack, which grants a bonus that dampens noise, the Backstreet Butcher add-on that gives you battle bonuses, and the Arcane Assassin pack, which allows your magical skills to last longer and do more damage. These are all Bone Charm bonuses, by the way, and there are also new items and collectibles to be found.
Dishonored is such a fantastic game that you definitely want all the available content out there.
Related Game(s): Dishonored