Unibiome world

Dead worlds, such as Earth's moon and several others of our little part of the cosmos, are naturally made out of single biome: the complete lack of them (hence they're called "dead"). These may appear like desert/wasteland worlds, except for the complete lack of any ability to sustain life.

This is most noticeable when worlds/planets are blatantly labeled after biomes, such as desert, swamp, or jungle world.

Note that this is NOT when the game area itself is limited to single biome (e.g. the game's set in some small town and its surrounding area, this would naturally limit the diversity of depicted biomes, unless the game makers did something ridiculous), but rather when the whole world or worlds are depicted as being made of single biome.