Dragon Age - Thedas

The ruins a large fortress. Standing at the edge of the Korcari Wilds, its Tevinter garrisons watched for any signs of invasion by the Chasind barbarians. Since the fortress is located beside a narrow pass in the hills, the Chasind would need to pass by it to access fertile lowlands in the north. Ostagar proved to be exceedingly difficult to attack due to its naturally defensible position. Ostagar was abandoned after Tevinter's collapse during the First Blight. In -184 Ancient, the Chasind claimed the fortress for themselves. Over the ages, the Chasind threat has dwindled. They experienced a major defeat at the hand of Hafter after the Second Blight, largely ending their ability to invade the lowlands. The Chasind influence furthermore diminished as Ferelden formed into a sovereign nation. No troops have been stationed in the area for four centuries, despite most of the walls still stand, as does the dwarven-made Tower of Ishal named after a Tevinter Archon of old.