http://www.atari.com/dragonshard/home
Dragonshard™ is a real-time strategy experience based in the mystical world of Eberron, the acclaimed new DUNGEONS & DRAGONS® realm. Within this wholly imaginative setting lives an inventive gameplay fusion: dramatic RTS play is affected by the risks and rewards of a thrilling RPG-styled underworld.
As players direct troops over the land, they also plunge smaller, hero-led parties below ground to an RPG-modeled world of beasts, battles and bounty. Experience and items gained in this underworld result in great powers and abilities above ground.
Using magic, weaponry and skilled maneuvers, players command armies from varying races to control, protect – or destroy – the powerful Heart of Siberys. Obtaining this omnipotent artifact will unleash its full forces, good or evil, upon the entire world.
But hey, it's 'wholly imaginative'... whatever that means.