The debut add-on for the acclaimed first-person action game will cost $4.99 / £3.99 / €4.99 / AUD$8.45 (or 400 Microsoft Points) and include 10 challenge maps designed to test players' combat, stealth and mobility skills.
The ten trials include an arena battle against enemy waves, a drop assassinations test, and a timed race. The DLC will also introduce new achievements and trophies, along with a global online leaderboard.
According to a post on Bethesda's official blog the second and third DLC packs for Dishonored are story-driven and will be available in 2013.
The first is centered around Daud, leader of 'The Whalers', and will feature new weapons, powers and gadgets.
In CVG's Dishonored review our reviewer calls the game one of the greatest of the current generation.