.9.9.3 brought us a number of new, shiny level events that spice the game up. But still, those events are few. Thus, I call you to arms, citizens of the Forge, come here and invent new interesting additions to level generation that will make DoomRL grow in variability, power and shiny.
Yesss... shiny.
And allow me to start:
"You see the back of your head for a moment" - every X turns, every being on this level randomly teleports.
"You can hardly see a thing here" - no level memory on this floor, as per old Angel of Darkness.
"This place seems sturdy" - walls on this level cannot be damaged.