Wikipedia
Gamebryo
Gamebryo is a game engine. Gamebryo 3D and LightSpeed engines are owned by Gamebase Co., Ltd. and Gamebase USA and have been used by several video game developers including Atlus, Trion Worlds, 2K Games, Disney, Ubisoft, Bethesda Softworks, Firaxis Games, Tencent, Sony, Shanda, NCsoft, Rockstar Games and KingsIsle Entertainment for numerous cross-platform game titles.