The Deep Rainforest biome is a biome introduced in Don't Starve: Hamlet DLC. It is characterized by its red leaf-like Turf, its abundant Rainforest Trees, Great Leafy Stalks, its Pig Ruins, and the foliage that will appear on the top of the player's screen when entering (whose purpose is doubtless, apart from aesthetic, to limit the player's visibility). A specific music will also play when the player enters this biome.
The Deep Rainforest biome is more dangerous than most other biomes. In addition to limited visibility, many dangerous life forms such as the Hanging Vines, Snaptooth Seedlings, Snaptooth Flytraps, and Spider Monkey can be found here.
The Ruins leading to the other islands (where one can find the Fountain of Youth and the Palace) are located in the Deep Rainforest, and can be recognized by their door covered in vines.
- The door leading to the Fountain of Youth's Island has a statue of a Pinecone boulder on top of the door.
- The door leading to the Palace's Island has a statue of a pig holding a spear on top of the door.
Deep Rainforest cannot be dug up with a Pitchfork.
| Biomes | |
| Surface | |
| Caves | |
| Ruins | |
| Water Biomes | |
| Island Biomes | |
| Other | Bridge • Map • Road (Trail) • Turfs • Abyss (Interiors  ) (Lunar Island  ) |
