Void map

A void map is a level design themed around surreal islands of matter floating in an endless void.

Designs found in void maps

 * Partially erased structures
 * Upside-down structures
 * Stark darkness
 * Shifting colors
 * Sky floors

Notable maps

 * MAP45: Abstract Zone (Skulldash)
 * MAP31: In The Void (Doom 64)
 * Lullaby
 * Null Space
 * Tartarus
 * Void
 * Void and Rainbow (unrelated)

WADs that feature multiple void maps

 * 50 Shades of Graytall
 * BlooM
 * Sunlust