High concept 4-in-1 singleplayer map for Doom 2. Four miniature maps connected by a single hub corridor, each with its own theme and playstyle. Built in vanilla Doom 2 over 13 months, this is a labor of love for those who relish the classic Doom 2 experience. No advanced source-port features or enhancements, except pushing the Doom 2 map format to its limits.