Gamebryo's design emphasises a rapid prototyping approach aimed at an iterative development process. Game developers can combine and extend the libraries to modify the engine for a particular game. The Gamebryo system is a suite of modular C++ libraries. The newest version, Gamebryo 4.0, was introduced in March 2012. Gamebase USA is based in the Research Triangle Park region of North Carolina and is focused on continual development of the Gamebryo game engine. In December 2010, Korea-based Gamebase Co., Ltd., a longtime partner of EGT, finalized the acquisition of EGT assets and technology, and established a newly capitalized U.S.

On November 11, 2010, assets of EGT were offered for acquisition, including its intellectual Property (IP), in whole or in part. During 2009 the development staff of Gamebryo was downsized, and by July 2010 the engineering office in Chapel Hill, North Carolina was closed. NetImmerse then evolved to Gamebryo LightSpeed.

NDL was merged into Emergent Game Technologies (EGT, founded 2000, until May 2005 ) in August 2005. This work led to the production of the NetImmerse game engine in 1997, evolving into Gamebryo by 2003. Numerical Design Limited (NDL) was founded in 1983, mostly doing contract work for government and CAD clients in the computer graphics sector, though also some game developers such as Interactive Magic.

Bethesda releases gamebryo engine