Cyberdemon531 debuts on the Doom scene with Secretdoom: Disrepair, a ten-map Doom II episode for GZDoom released in 2014. Well, there's a little more to it, but not that much. The mapset has nine normal levels and one secret, plus seven rearrangements of earlier works for a survival-oriented horde mode. There isn't really anything to it storywise. It's got an ending blurb but it looks like your typical "Doomguy fights off Hell" thing.
