Gas Rainforest

The Gas Rainforest is a biome introduced in the Hamlet DLC. This biome is connected to a Rainforest biome and has a thin green fog throughout. The terrain is a noticeably deeper red color than the Rainforest terrain. The Gas Rainforest is the only place the player can find naturally occurring Red, Green and Blue Mushrooms (and Mushtrees during a Full Moon). A Gas Mask is required to navigate the Gas Rainforest without taking damage. If the player enters this biome without a Gas Mask, the edges of the screen will produce a green flicker (similar to being poisoned) doing 3 damage per second until the player exits the biome.