Here's the WAD file which illustrates several hard-to-implement and VERY

Here's the WAD file which illustrates several hard-to-implement and VERY
important WAD features, texture-mapping, difficulty levels, and a couple of
nice features, including monster "turrets," two-part doors, and one-way
wall-doors. Enjoy, learn, and await the coming of Quake drooling...

Mneumenth, cyborg dragon of Earth and helper of Dominia
[email protected]

Oh, yeah, it's MAP01, and won't work in Doom 1. If there's enough interest,
I'll "port" it to Heretic, Hexus, and Doom 1, as requested and upon availability
of editors for said programs.