Comment: "Plerbtonia is an under development Plutonia megawad featuring relatively short maps. It's vanilla compatible (-complevel 4) and the IWAD is PLUTONIA.WAD. The maps are designed for pistol starts and haven't been tested on continuous. Skill levels are sorta implemented (HMP and UV are mostly the same but HNTR is easier)." a new Plutonia megawad in the works from Plerb. Features 26+1 secret maps. About them: "They're not very polished visually, as my main focus was on the gameplay, but I think they look servicable enough.
*Difficulty wise I think these maps are hard, and some of the later maps are probably harder than Plutonia itself. HNTR is implemented but HMP is mostly the same as UV currently. Whatever difficulty you pick it, should bring a challenge. ".