Neverwinter Nights 2: Storm of Zehir’s list of features also includes:
• Travel the Sword Coast and Samarach with the open-ended exploration of the new Overland Map. Use skills like Spot, Survival, and Hide to avoid ambushes and even find hidden locales and lost artifacts.
• Create your own full party of adventurers. Devastate your foes with a squad of fireball-flinging Sorcerers, form a solid wall of steel with a party of Fighters, or strike the perfect balance in your party by spreading out the classes you choose for your characters.
• Improved party gameplay with a sophisticated party conversation system, full party creation, and Teamwork Benefits.
The add-on has been developed by Obsidian Entertainment.