As a part of the NaNoWadMo challenge hosted by @Ryath, I have made my first wad consisting of 3 boom-compatible, vanilla-styled maps. There aren't any difficulty settings, but it shouldn't be any harder than the original Doom (outside of one specific area anyway).   Screenshots: The .txt file with details: Gameplay videos: Download: https://doomshack.org/uploads/terribl3.zip and alternate mediafire link