Doom in Hexen format, tested on ZDoom.
It wasn't tested on anything else.
Music by me. You'll probably prefer it turned off, feel free to do so.

Main change that will be noticed regards weapons.
All missile-like projectiles have radius damage.
Player arsenal too.
The main reason for this description is to inform you
about the possibility of killing yourself with the plasma rifle.
Save often.

BFG9000 is an anti-boss extremely strong weapon.
It is possible to kill every kind of foe with a single shot.
Safe distance adviced.
Plasma rifle got slowed down and powered up.
Rocket launchers damage distance is doubled. Cyberdemons one too.
Bullet weapons have different spread and are quite effective now.
Foes use same weapons as you, so the best tactics is to kill them first.
Hell Knights and Barons don't take radius damage,
plasma rifle and rocket launcher may be not as effective as desired.

Finally - I'm new to custom content in zdoom,
I don't know the commonly accepted standards and this file may be a bunch of s***.