 A priority for developers was the improvement of the original game 's performance . Saunders said " Throughout the course of the project , we fixed many bugs , optimized performance , made better use of the graphics technology , and in general , tied up loose ends . For example , we revamped the camera and party controls , adding an RTS @-@ like strategy mode that makes combat much more enjoyable . " Neverwinter Nights 2 programmers made improvements to the engine , . such as the addition of a color desaturation filter that turns almost all colors into shades of black and white . The art team developed new environments for the regions of Rashemen and Thay that they felt would be appealing to the game 's modding community , such as snow @-@ covered forests and a magical academy . Mask of the Betrayer is the first time either region has been featured in a Dungeons & Dragons video game ; Obsidian stated that one design goal was " to immerse the player in the land of Rashemen . The art , music and characters were chosen and crafted to convey this very intriguing area of the Forgotten Realms . " 
