I dusted off my old 3 disc copy of Doom 3 after finding some mods to bring it's graphics and effects up to date! Also some cool single player maps for some instant zombie killing fun.
Graphics & Effects Enhancements:
Installs to your \doom 3\base\ folder.
Installs to your \doom 3\base\ folder. This mod comes with a "mysettings.cfg" file and I suggest you copy it's contents (opens with notepad) and paste them at the end of your autoexec.cfg file
Single-Player Zombie Related Maps: