Entertainment Software Publishing (エンターテインメント・ソフトウェア・パブリッシング), or ESP, was a computer game publisher. It was created in 1997, primarily as a support company for the developer studios that made up GD-NET (Game Developers Network). ESP took the burdens of public relations and sales out of the hands of game studios.The companies that participated in financing ESP's creation include many GD-NET member companies: Game Arts, Treasure Co.