Dungeons & Dragons: Shadow over Mystara Gameplay (2P Co-op)
Dungeons & Dragons: Shadow over Mystara, Capcom 1996
Dungeons & Dragons: Chronicles of Mystara, 2013
Nintendo eShop, PlayStation Network, Xbox Live Arcade and Steam
Plot
After defeating the Arch Lich Deimos, the heroes continued on their journey through the Broken Lands of Glantri after realizing that Deimos was only part of an even greater evil plan, and he was in fact being used by a mysterious sorceress named Synn. Synn, who appears to be a young woman but commands incredibly powerful magical abilities, has been scheming to control the Kingdom of Glantri and conquer the humanoids of the Republic of Darokin. But now that Deimos has been defeated, Synn vowed to punish the land that she desired.
https://en.wikipedia.org/wiki/Dungeons_%26_Dragons:_Shadow_over_Mystara