link - one map by Trashbang (who I first came to know from seeing them post their wad Don't Turn Your Back On The City on Doomworld).
I had about 30-40 minutes before work this morning so I decided check this out, and... damn. The whole experience felt reminiscent of a twisted, Quakeified version of the film Cube. Trapped in a super-structure that shifts and changes about around you, every room looking more similar than the last... except it's also Quake, so in addition to that, it's also dark, cold, and hostility lies in what remains unseen.
They wrote about making it on their website, here. I would encourage reading it.
shots below. Apologies for the lower gamma, I really felt like these maps needed to be a bit dark.
