An expansion pack for the Obsidian-developed Neverwinter Nights 2 will be coming to North America and Europe in "fall/autumn 2007" and will be titled Neverwinter Nights 2: Mask of the Betrayer.
The new expansion takes place shortly after the events of the popular RPG, following the final boss battle with the King of Shadows. The adventure begins--or rather, continues--when the player's character wakes up stranded deep beneath the earth, all alone and surrounded by a horde of evil spirits.
Mask of the Betrayer will be set in Rashemen, close to the powerful nation of Thay. It will feature a new campaign, new levels, dozens of new feats and spells, and new races, classes (and prestige classes), companions, weapons, armor, and crafting options, as well as "hordes" of new monsters and enhanced modding tools.
The first Neverwinter Nights game, featuring classic dungeons-and-dragons gameplay, also included BioWare's Aurora toolset, which let players create their own dungeons and put them online and was released in 2002. The original spawned several expansion packs, including Neverwinter Nights: Shadows of Undrentide, as well as the sequel. The franchise has sold 3 million copies to date in more than 40 countries and in 10 languages.