The Ominous Woods biome is a dark, heavily wooded biome with pools of Liquid Poison. It contains thorns, shrubs and Dark Trees that produce a purplish wood (appropriately named Dark Wood, or Dark Saplings). Cave spiders, hostile wolves, and endermen are the only mobs that spawn in this biome. This is one of the most difficult biomes to survive in for beginners, but if you're okay with everything trying to kill you, it's quite a nice place to live. Vegetation consists of Deathblooms which cause withering, Anemones, Thorns and Poison Ivy. Thick ominous woods is sub-biome to this biome. It contains Thick Dark Trees, that are more common there than in the normal Ominous woods. In more recent updates, a thick fog has been added to this biome, making much harder to see and get around.