Bethesda has announced that the first DLC for Dishonored, Dunwall City Trials, will be released for the Xbox 360, PlayStation 3 and PC this December for $4.99 or 400 Microsoft Points.

Dunwall City Trails will include "10 challenge maps" each of which will feature 10 distinct trials designed to test your combat, stealth and mobility skills. The trails will include an arena battle against waves of enemy AI, a gravity-defying run of drop assassinations, and a race against the clock. Dunwall City Trials will also features a whole new set of achievements and trophies as well as a global online leaderboard.

In addition to Dunwall City Trails, Bethesda has also announced that the second and third add-ons for Dishonored will be coming in 2013 and will each feature story-driven campaigns. Daud, the leader of a group of supernatural assassins known as ‘The Whalers’, will be the focus of the second add-on pack which is scheduled for release in early Spring 2013. 

Details of the second and third add-on pack will be revealed closer to its launch next year.