DOOM 1 - PARADOX.WAD (dmpara.zip)
Channel: DOOM WAD World
Date: 2023-03-01

called "Paradox" in the /idgames FTP.
https://www.doomworld.com/idgames/levels/doom/d-f/dmpara
created by Rick DeMar on May 3rd, 1994.
from the .txt file included with the WAD:
"So here it is: Paradox, E1M2. Where Showdown only included my favorite four of the baddies, Paradox has them all. (With the exception of the bosses.) Also present are some interesting plays on the usual constructs. As before, I spent exhaustive (No joke there!) man hours playing and playing to bring the difficulty to just the right point. It CAN BE WON, providing you bear in mind the following points:

1: DOOM has a save game feature...

2: Monsters shoot too, so watch your ass!

3: What sometimes looks peaceful and innocent is probably a trap! Spare no caution!

4: Ammo is quite transient; use only what you have to and be careful what type you use.

5: Moving objects are much harder to hit than ones that just stand there and let themselves be shot...:)

Once again, this level gets much easier with practice, making it fun to come in on a fleshing rampage once you get good at it!"

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discord: https://discord.gg/aUsWnqaePy