Neverwinter Nights

Neverwinter Nights (NWN) is a third-person role-playing video game and is set in the fantasy world of the Forgotten Realms campaign setting, with the game mechanics based on the Dungeons & Dragons 3rd edition rules. The game engine was designed around an internet-based model for running a massively multiplayer online game (MMOG), which would allow end users to host game servers. The intent was to create a potentially infinite massively multiplayer game framework.