OK, here’s a level I made! Don’t expect me to review it or do a demo, that’s your job! =P
Using Ultimate Doom, pick E2M1 to play and I recommend Hurt Me Plenty. I’d be impressed by anyone finding their way through to the secret exit first time around!
The tune inside is all orchestral-progressive stop-start sometimes-rock, intentionally fragmented and hopefully interesting enough that it can loop for a whole hour while you wander around levels at least this strange. 😀