Dishonored is due a new story-based expansion titled The Other Side of the Coin, a leaked list of PlayStation Trophies has revealed.

The unannounced expansion appears to offer a number of new story missions, unlike previous add-on Dunwall City Trials, which was a challenge map-based affair.

The Other Side of the Coin will take players to Rothwild Slaughterhouse and the estate of one Thalia Timish, the awards list on PS3 Trophies suggests.

As in the main game, players will be rewarded for completing the add-on without killing anyone, and again for not alerting a single enemy to your presence.

No pricing or launch date is yet known for the add-on.

Eurogamer has contacted publisher Bethesda for more information.