Zero Brightness is an experimental thriller DooM 2 episode, designed with the GZDoom Dynamic Lighting and Shadowmap feature in mind.   WAD information Author:GuyWithTeaCup IWAD:Doom 2. Medium difficulty 8 maps size episode + 3 secret maps. Custom soundtrack from "Davinel". Singleplayer and 2-4 players Coop mode support. UV-Max/Pistol start beatable.   Compatibility To keep this WAD compatibly with various mods as high as possible,