Thread:Vorknkx/@comment-3547390-20161116194210/@comment-1496755-20170219213755

Ooooh, good old DeePsea, the spawning pit of my earliest map making attempts (including the mountain base, caverns and sewers you've already seen + a few Doom 2 maps you haven't had the pleasure to try out yet).

Not a bad editor as a whole, but had this nasty habit of messing up things when least expected. Like you try to make something more fancy near a wall and the entire wall (or even the entire room) will be plagued by visual glitches. Never had such issues with Doom Builder.