Nox is an action role-playing game developed by Westwood Studios and published by Electronic Arts in 2000 for Microsoft Windows. It details the story of Jack, a young man from Earth who is pulled into a high fantasy parallel universe and has to defeat the evil sorceress Hecubah and her army of Necromancers to return home. Depending on the player's choice of character class at the beginning of the game (warrior, conjurer, or wizard), the game follows three largely different linear storylines, each leading to its unique ending. In the multiplayer, players can compete against each other in various game modes such as arena and capture the flag, or cooperate against computer-controlled monsters in the "Quest" mode introduced with the last patch. The game was generally well-received by the critics and media.
A list of credits can be found here.
An installation guide you can find here: http://nox.introverse.net/installguide/