"epic levels, dozens of new feats and spells; new races, base classes and prestige classes; new companions; new weapons, armor and crafting options; hordes of new monsters; and enhanced modding tools".

In Neverwinter Nights 2: Mask of the Betrayer, players are transported back to the Forgotten Realms shortly after the events detailed in the original Neverwinter Nights 2. Following the climactic battle against the King of Shadows, the player awakens alone and stranded deep beneath the earth. Surrounded by a horde of evil spirits, the player embarks on an epic adventure that reveals his true destiny.

The Neverwinter Nights franchise has sold more than three million copies worldwide, is translated into 10 languages, sold in more than 40 countries and features one of the largest and most active fan communities in all of gaming. To date, fans of the franchise, which includes Neverwinter Nights, Neverwinter Nights: Shadows of Undrentide™ Neverwinter Nights: Hordes of the Underdark™ and Neverwinter Nights 2 have created more than 5,000 modifications to the original game using the award-winning toolset included with the full game that allows players to create their own universes, quests and storylines.