This mod requires a Doom 1 IWAD (or Freedoom) and GZdoom.

Story

Hello, thank you for volunteering for the UAC weapons testing program. For operation "Hoofin' It", you will be tasked with testing the prototype AMSG-10K, an incredibly powerful antimatter rifle, in a fatal combat simulation. To aid in ease of adoption, this weapon looks and functions just like the shotgun you're familiar with, but instead of shells it accurately fires an antimatter slug capable of dealing 10,000 damage to a single target. Your ammunition supply will be unlimited, so don't hesitate to put the AMSG through its paces. The exploding barrels have also been filled with antimatter, so use these to your advantage, but be sure to keep your distance.

To gauge optimal combat effectiveness, you will be placed in a simulation of your first mission on the UAC Mars base in which every target has been replaced with the creature you know as a "cyberdemon". Be advised that placing a large number of cyberdemons in unfamiliar environments may cause them to behave unpredictably.

To assist you with this dangerous task, you will be provided with a larger number of high-level health and armor upgrades, and your maximum limit for each resource has been doubled. In addition, the cyberdemons will drop (now-obsolete) energy cell ammunition. These cells can be used to power a modified rocket launcher that can convert 100 cells into a "Soulsphere", an artifact that provides a large amount of health. You also have a modified plasma rifle that can convert 200 cells into an artifact that grants temporary invulnerability. Use these devices wisely, as energy cells will be a scarce resource.

You will also notice what looks like a standard issue BFG-9000 in your loadout. This was another prototype antimatter weapon originally intended for testing during this operation, but a malfunction was discovered after preparations were complete. Do not attempt to use this weapon, as in its current form it consumes a massive amount of energy and is critically unstable.

Please report your observations after each 8-floor sector. The data you provide will be invaluable for future weapon research projects.

Demonstration video

Accolades

This mod won the Seals of Goodness and Dumbness from Aquarius199 on youtube.

Extras

If you support this mod by paying at least $2, you get a print-quality (600 DPI) signed certificate of achievement/authenticity to commemorate your purchase. The certificate includes a hot gameplay tip not found anywhere else.