He probably ended up in Equestria when Dr. Samuel Hayden teleported him away at the end of DOOM (2016). And probably skinned an evil unicorn in the process - seriously, have you noticed those outrageous 'donkey teeth' right above the Praetor helmet's visor?

I want this to be an actual story now.

Hi. Just wanted to tell you that I love this and it has inspired me to write something related to the doomicorn. I thank you for this. (:

I always thought the Doom Slayer hunted and killed an unicorn, and used it to make a new set of armor.

THE DOOMICORN SKIN IS THE BEST SKIN

Well this is great.

lmao