Dragon Age: Inquisition – The Descent is a downloadable content (DLC) pack developed by BioWare and published by Electronic Arts for the 2014 action role-playing video game Dragon Age: Inquisition. It was initially released for Xbox One, PlayStation 4, and Microsoft Windows through Electronic Arts' digital distribution platform Origin on August 11, 2015. The pack follows the Inquisition's exploration of the Deep Roads, a subterranean network of underground pathways and tunnels built by dwarven civilizations of yore, to investigate the occurrence of strange earthquakes which is disrupting international trade of the precious material lyrium.