Dishonored's first downloadable content pack, Dunwall City Trials, will be available on Dec. 11 across all platforms, publisher Bethesda announced today.

The pack includes 10 new challenge maps, including assassination missions as well as non-lethal ones, such as sniping oil tanks out of the sky and looting enemy mansions. Along with these challenges comes a new set of achievements and trophies, as well as an unlockable image gallery that will fill up as players complete the trials. Players can also keep tabs on each other kills and record times with an online global leaderboard. Check out the screenshots above for a look at the latest challenges players will face in Dunwall.

Dunwall City Trials will be available worldwide on Xbox 360 for 400 Microsoft Points ($5) and on PlayStation 3 and PC for $4.99.