MAP09

A level called MAP09 appears in each of several different games and megawads:


 * MAP09: The Pit in Doom II
 * MAP09: Stronghold in TNT: Evilution
 * MAP09: Abattoire in The Plutonia Experiment
 * MAP09: Even Simpler in Doom 64
 * MAP09: Castle: Programmer's Keep in Strife
 * MAP09: Castle Gardens in Alien Vendetta
 * MAP09: The Transformer in Community Chest 2
 * MAP09: Knockout in Hell Revealed