Neverwinter Nights is a third-person role-playing video game developed by BioWare. Interplay Entertainment was originally set to publish the game, but financial difficulties led to it being taken over by Atari. It was released on Microsoft Windows on June 18, 2002. BioWare later released a free Linux client in June 2003, requiring a purchased copy of the game to play. MacSoft released a Mac OS X port in August 2003.