Doom uses a fictional corporation abbreviated as “UAC:” this is trademarked by id Software and cannot be used in Freedoom. Instead, use the initials “AGM” for Freedoom.
What’s AGM stand for?
Anthropogenic Global Mourning
“Awesome game, man.” perhaps.
Anion Gerospace Morporation
From this comment from this 2009 doomworld forums thread:
It was an in-joke, and don’t feel bad for not understanding it completely… I don’t really get it either :P
If you were wondering just in case of writing a story or some such, I doubt anyone would care if you re-define what the letters AGM mean.
Someone has then proposed a back story in 2018,
In 2017, an issue has been open on GitHub, and a related freedoom forum thread was started with a poll.
https://www.doomworld.com/forum/topic/140613-what-does-agm-mean/
