As the title suggests, this is my first and only complete map (I'm working on others, but there are various graphical issues DoomBuilder2 refuses to cooperate with me on). It's in Ultimate Doom/Doom 2 format, as I couldn't get a goddamn DOOR to work properly in UDMF, though I would much prefer to use it if I could help it. I believe its resources are from Ultimate Doom, along with a few ceiling textures altered to tile correctly in key areas of the map.
I should mention that one secret in this level MUST be found in order to exit the level, though to avoid ruining the surprise, I won't tell you which one it is. The map can be completed, with 100% kills, items, and secrets, in vanilla Doom, Brutal Doom, and X-Weapon on Ultra Violence or equivalent.
Download this embarrassment here.