', a role-playing video game based in the "Star Wars" universe, was also released by BioWare using a modified version of the Aurora engine of "Neverwinter Nights", called the Odyssey Engine. The sequel, ', also used it. Because of this, modders have been able to modify these games using some "Neverwinter Nights" modding tools. "The Witcher", a role-playing video game by CD Projekt Red, is also based on the Aurora engine of "Neverwinter Nights". BioWare used "Neverwinter Nights" and its toolset to develop prototypes and mock-ups of various areas and scenarios for "".