Dawn on the Dead: Hell on Earth is the twelfth mod by Wes Desjardins. It was released on June 3, 2003.
It is a horror-themed mod and features many new graphics, sounds and music. Source code has been changed as well, based on registered Wolfenstein.
Notoriously difficult due to the lack of sufficient ammo, an ammo patch was released on November 16, 2003. This did not replace the original version, and in order to get a fair shake, one would need to download both the mod and the patch.
It has never been ported to SDL.