The Mysteries of myhouse.wad Explained (How it works) - Part 4

The 2023 GZDoom WAD "myhouse.pk3" caused a sensation on Doomworld and beyond - it's a multithreaded descent into madness. Here is an overview of how it performs its tricks with clever use of the Doom, Boom and UDMF features! https://www.doomworld.com/forum/topic/134292-myhousewad/ This video describes some further discoveries and answers some questions from the first three videos. RAMP 2023 music: MikeTheMike2014 zorilla0's Backrooms video: https://www.youtube.com/watch?v=6ds-MqHZOl8