The game that was meant to be. As the 2001 trailer showed us. Released. Check download sections, ladies!
DNF 2013 is a masterpiece. Sure, it's on the Build engine, sure it's still 2-and half-D, but it has that feel of brand new game. Using locations, weapons, enemies and even some vehicles from DNF 2001 trailer is amazing! Maps are HUGE and detailed. I also think this mod is harder then original DN3D (at least on "Come get some" diffuculiy) and adds many intersting features. It's a pity it's only few levels long, but with the DLC it's even better (especially the driving level).
In the end, we now have Brutal Doom, Duke Nukem Forever (2013), and DukePlus. All we need now is Badass Quake and Kickass Shadow Warrior.