The Deimos Subway (SUBWAY.WAD) is a single-level PWAD designed by Neal Ziring. It was originally released July 23, 1994. The architecture of the map simulates several subway terminals connected by wide, dark tunnels, storage and maintenance areas, and even a ticket counter and a concession stand. It includes a handful of replacement textures, such as graffiti and photos of Comet Shoemaker-Levy, and an original music track, which is a rendition of the jazz standard "Take the 'A' Train".