The Bitter End is a mod for registered Wolfenstein, made by Thomas Weiling. It was released on April 20, 2008. It consists of only 10 levels, 2 of which had already been released (level 4 came from Castle Assault and level 9 from All This & Wolf 3D).
The mod was made during a creative lull, as NovoWolf took the backseat due to an unforeseen coding error that halted the process. Eager to return to classic mapping, Thomas made levels 1 & 2 in quick succession, a return to the styles of All This & Wolf 3D where levels were quite extensive and very large.
The story is loosely based on Episode 3, as Hitler is the boss of the mod.
Other than a Commander Keen Easter egg, all graphics remain unchanged.
The remainder of the levels were made during 2007 and early 2008, where activity otherwise remained low due to NovoWolf's hiatus that continued until late 2009.
The Bitter End featured an EXE coded by Dean Horton. It uses seamless level flow though only containing 10 levels.
It was ported to SDL and released on May 13, 2013.