Wikipedia
HeroEngine
HeroEngine is a 3D game engine and server technology platform originally developed by Simutronics Corporation specifically for building MMO-style games. At first developed for the company's own game Hero's Journey, the engine won multiple awards at tradeshows, and has since been licensed by other companies such as BioWare Austin (which is using it for Star Wars: The Old Republic) and Stray Bullet Games (for an as yet unnamed project).
On June 12, 2010, Idea Fabrik announced that it had purchased "the HeroEngine and HeroCloud game development technologies" as well as hired "the staff of Simutronics that was associated with the development and support of HeroEngine/HeroCloud".