E1M6: Subterra (Phobos: Anomaly Reborn)

E1M6: Subterra is the sixth level of Phobos: Anomaly Reborn and was released in 2003, created and designed by Christopher Lutz. Phobos: Anomaly Reborn won a Cacoward in same year and was included in Doomworld's Top 100 WADs of All Time article.