Complex sentence: DemonWare is a software development company and a subsidiary of Activision Blizzard, Inc. It was originally founded in 2003 by two of the founders of Phorest, Dylan Collins and Sean Blanchfield.
Split into simpler sentences: DemonWare is a software development company and a subsidiary of Activision Blizzard. DemonWare was founded in 2003 by Dylan Collins and Sean Blanchfield.