Neverwinter Nights 2 Complete Edition is a comprehensive role-playing experience set in the rich Dungeons & Dragons universe, specifically within the Forgotten Realms campaign setting. This epic adventure offers unprecedented character customization with 12 races, 17 sub-races, 15 base classes, and 24 prestige classes, allowing players to craft their unique hero from over 300 spells and feats.

The game employs a seamless blend of real-time and turn-based combat using D&D 3.5 edition ruleset, where players command a party of up to three companions through various quests and battles. The highly customizable interface allows for both third-person and isometric camera views, providing flexibility in how players experience the game.

Players begin their journey in the village of West Harbor before becoming embroiled in an epic tale involving the mysterious King of Shadows. The narrative unfolds across three distinct acts, featuring political intrigue, complex alliances, and the management of Crossroads Keep, a fortress that serves as the player's base of operations.