Sons of the Forest features nine marked cave systems, each offering unique and critical loot for progression, including the Rebreather from Cave A, the Rope Gun from Cave B, and the Shovel from Cave C. These items are vital for unlocking further areas, advancing the narrative, and accessing deeper, more dangerous cave environments.
Overview of Cave Systems and Key Loot
The caves in Sons of the Forest are primary points of interest, providing essential tools, weapons, outfits, and story elements. Opening a cave entrance can lead to increased mutant activity on the surface, making building near them dangerous as days progress. After initial clearance, at least 2 mutants will naturally respawn daily in the area. Creepy takeovers of cannibal villages also begin once at least one cave is opened. As of June 22, 2026, the following table summarizes the major marked caves, their primary unique rewards, and general difficulty.
| Cave | Other Name | Key Loot | Required Tools | Difficulty |
|---|---|---|---|---|
| A | Rebreather Cave | Rebreather, Stun Gun | None | ★☆☆☆☆ |
| B | Rope Gun Cave | Rope Gun, Cross, Artifact Piece C | None | ★★☆☆☆ |
| C | Shovel Cave | Shovel, Flashlight Attachment, Wetsuit | Rebreather, Rope Gun | ★★★★☆ |
| D | Ancient Armor Cave | Ancient Armor, Rifle (upper part) | Rebreather | ★★★☆☆ |
| E | Hell Cave | Golden Cube, Story Items | Golden Armor (end-game) or story trigger | ★★★★★ |
| F | Pickaxe Cave | Pickaxe, Schematic – Item Plating | Rope Gun or climbing gear | ★★★☆☆ |
| G | Artifact Cave | Blueprint – Grind Trap, Crossbow Bolts | Axe (to break planks) | ★☆☆☆☆ |
This table highlights the most impactful items found in each cave. For instance, the Rebreather from Cave A is crucial for underwater exploration, while the Rope Gun from Cave B enables traversal across zipline gaps. The Shovel from Cave C is a critical progression item, required to dig up bunker hatches.
Detailed Cave Breakdown and Exploration Tips
Each cave presents distinct challenges and rewards, necessitating specific preparation. Understanding the layout and required tools for each is key to successful exploration.
Cave A (Rebreather Cave): Located on the northeastern shoreline, this fork-like cave is an early-game objective. One path leads to the Stun Gun, while the other culminates in the Rebreather. Be cautious of a shark in the water near the Rebreather; throwing severed limbs can distract it, allowing safe passage. Enemies include 7-10 Puffies, 2-6 Fingers, 3-5 Babies, and 0-2 Sharks.
Cave B (Rope Gun Cave): Found immediately uphill from the forest crash site, this cave provides the Rope Gun, essential for creating ziplines and traversing specific cave sections. It also contains a Cross and Artifact Piece C. Expect encounters with 10-16 Puffies, 19-25 Babies, 4-8 Fingers, 2-5 Twins, and 1 Sluggy.
Cave C (Shovel Cave): Situated at the confluence of two rivers below the mountain crash site, this cave is significantly more difficult. Accessing its full extent requires both the Rope Gun (to cross stalagmite walls) and the Rebreather (for fully flooded sections). The Shovel is a critical reward, alongside a Flashlight Attachment and Wetsuit. This cave houses a large number of enemies: 20-29 Puffies, 25-31 Babies, 7-12 Fingers, 5-6 Twins, 2 Legsies, and 1 Sluggy. A challenging Legsy ambush is a notable feature.
Cave D (Ancient Armor Cave): The entrance is cut into the rock face next to the second largest lake. This cave requires the Rebreather for further access into its flooded sections. The Ancient Armor is found here, and the Rifle is located in an upper part accessible only from Grotto D. Enemies include Puffies, Blue Puffies, Babies, Twins, and Demons. Cultists are found dead near a book by the entrance.
Cave E (Hell Cave): This unmarked cave is accessed through the Luxury Bunker. It serves as a final cave, leading to one of the game’s endings. It contains the Golden Cube and other story items, culminating in a fight with a demon boss and a giant demon. Timmy will block the exit if re-entering after completing the game.
Cave F (Pickaxe Cave): Added in Patch 12, this cave is located in the northern cliffs and requires the Rope Gun or climbing gear to navigate its rope sections. Its primary unique loot is the Pickaxe and a Schematic – Item Plating. Other items include rope supplies, meds, and ammo.
Cave G (Artifact Cave): Found in the northeast island’s fishing village, inside a decayed hut, this cave requires an Axe to break planks covering its entrance. It rewards players with the Blueprint – Grind Trap and Crossbow Bolts.
Cave Dangers and Essential Preparation
Caves are dangerous environments filled with mutants and environmental hazards. Proper preparation is paramount for survival and successful loot acquisition.
Mutant Encounters: Each cave has a specific roster of enemies. Once a cave is opened, mutants can begin spawning on the surface, and building near entrances becomes risky. Mutants respawn daily, and “creepy takeovers” of cannibal villages occur after the first cave is opened. Specific mutant types include Puffies, Babies, Fingers, Twins, Legsies, Sluggy, Sharks, Blue Puffies, and Demons. The Hell Cave (E) features a Demon Boss and a Giant Demon.
Environmental Hazards: Many caves contain flooded sections requiring the Rebreather (Cave A). Some have untraversable walls requiring the Rope Gun (Cave B), while others feature rope sections that necessitate climbing gear (Cave F). Darkness is a constant threat, making a reliable light source critical.
Essential Gear:
- Light Source: Critical for visibility in complete darkness (Torch, Flashlight, Helmet Light).
- Weapon: Critical for defense against mutants (Modern firearm, Crafted Bow, Melee weapon).
- Rope: High priority for vertical navigation and emergency escape (Climbing Axe, Grappling Hook).
- Medical Supplies: High priority for injury treatment and mutant contamination (First Aid Kits, Herbs, Bandages).
- Oxygen Supply: Medium priority for deep cave breathing and toxic gas areas (Rebreather, Gas Mask).
- Mapping Tools: Medium priority for navigation (GPS, Chalk, Glow Markers).
- Food & Water: Medium priority for sustenance during extended exploration.
Understanding the specific requirements and threats of each cave system allows players to prioritize exploration based on desired rewards and to equip themselves appropriately, maximizing their chances of survival and success.
FAQ
What is the most critical item to get early from a cave? The Rebreather from Cave A is arguably the most critical early-game item, as it unlocks access to flooded sections in several other caves, including Cave C and Cave D, which are necessary for further progression.
Do enemies respawn in caves? Yes, after killing enemies, at least 2 mutants naturally respawn in the area each day.
What happens if I build near a cave entrance? Building near cave entrances eventually becomes very dangerous, as mutants begin to spawn in highest quantity near the caves as the days progress, especially after a cave has been opened.