In this mod of Duke Nukem 3D, Duke has a large variety of weapons and gadgets that upgrade as he uses them.  As you progress through the game, you will encounter more powerful monsters to match your increased firepower.  Based on the popular Duke Plus mod, War of Attrition incorporates many of the same features (including improved monster AI, bot allies, mirrored levels, damage effects, and more).  Attrition also comes with over 100 high quality fan made levels and several game modes.  Addictive with lots of replay value, Attrition showcases some of the best levels ever made for Duke 3D, adding new gameplay but keeping the essence of the original game intact.