Doom Speed Demo Archive
https://dsdarchive.com/

Pwad:      APF.wad
Map:       MAP12
Skill:     4
Category:  UV Max
Exe:       dsda-doom 0.29.0 -complevel 21

Time:      23:10.83

Author:    electro rage

Comments: Almost died like four times, but it's okay. GOT THAT demo.

Sub 20 is probably doable on this map, but it'd be brutal. This demo was already pretty easy to die in.
