While I was developing do-tims, I decided to create a small screw-about weapons mod for ZDoom, where I could destroy the standard Doom monsters in various and amusing ways. I sent it to a few people and they thought it was the most brilliant thing they ever saw (although the weapons didn't spawn, so it required cheating to get them), so my motivation level increased and I also started to add enhanced versions of pre-existing monsters. An idea popped up into my head to make them spawn in any level, and thus OMGWPNS was really born.

I created an extremely simple random spawning script which everybody that I sent it to thought was the best idea to ever exist in Doom. A few days later, the project was considered 100% complete. I also decided to make OMGWPNS dialup-friendly by reusing the standard monster sprites and recolouring them with the amazing power of DECORATE.