62.2° Lat, 39.6° Lon
The Swamp Cave is a cave on The Island. The cave contains the Artifact of the Immune, needed to summon the Dragon. A survivor entering the Swamp Cave will notice that the heat is nearly unbearable and the toxic gas will slowly kill you. Come prepared with Ghillie Armor, along with Gas Mask or a full set of SCUBA to protect against heat and survive the toxic air respectively.
- Wildlife: Swarms of araneo, meganeura and titanomyrma litter the cave. Titanoboa and the occasional megalania can also be confronted, as well as a large leech pool. Possibly the biggest threat are the arthropluera which can rapidly destroy armour and breathing equipment. On 1.0 difficulty, most of these creatures range between level 120 and 360. Achatinas can also be found but offer no threat.
- Poisonous air: Breathing equipment including gas masks or a full set of SCUBA gear (including the mask, tank, leggings and for some reason the flippers), as the toxic fumes within the cave can rapidly cause death.
- Ghillie suit
- Gas masks or full set of SCUBA
- Crossbow with Stone Arrow or better ranged weapons to control aggro
- 60 × Cooked Meat
- Medical Brew
- Calien Soup
- 20x20px Bug Repellent
- Custom Consumable to regenerate health and food
- A mount that's tall enough to keep you out of range of arthropluera armor destroying spit
- Metal Spike Wall for blocking passages and making animals slowly kill themselves.
- Flamethrower , if available, makes short work of meganeura and leech swarms.
- Complete protection from poison gas requires either gas masks or an entire set of SCUBA (including SCUBA tank, SCUBA mask, SCUBA leggings, flippers or ghillie boots, and ghillie gauntlets).
- Bring several gas masks - they only have 20 minutes of durability, but the player can survive with that gear alone (SCUBA is easily destroyed to arthropleura spit)
- Bug repellant will help you in much of the cave, however there are many tight corridors where you cannot sneak past enemies.
- Bring lots of stimulants with you and constantly watch your torpor. Everything in there wants you unconscious.
- Entering the cave with a tall tame like the baryonyx will help increase survivability.
- Ensure to pack extra armor/equipment, as arthropleura will likely break through whatever gear they can target.
- Try to tackle each creature one at a time by selectively drawing aggro. The last thing the player wants to do is attract several swarms of different threats at once.
- Megatheriums are strong mounts for this cave and can easily be brought in with cryopods, but are too large to be ridden throughout. Careful: players on foot are at higher risk of attack/gear destruction.
- Beelzebufos is useful as a secondary tame for damage and gathering cementing paste, but arthropluera can easily target the player's gear if used as a mount. Careful not to let enemies swarm it!
- A flamethrower with plenty of ammo is the best way to deal with the vermin in this cave, and can quickly kill large swarms of meganeura and leeches.
- Speedrun option: Near the start of the cave is a room with two stone pillars against the wall, with a high-elevation opening between them. Use a grappling hook enter this tunnel and get to the artifact. When you are using the hook (reeling-in) to the tunnel, you must crouch before the opening. This relatively easy maneuver bypasses the majority of enemies.(As of 6/14/2020 this hole is not in Mobile.)
Compatible Tamed Creatures
This table is incomplete.
You can help us by adding the tamed creatures you know can enter the cave. If the creature can't enter, please exclude it.
- Excellent: Full-Cave Access (Entrance-to-Artifact)
- Limited: Can Access Portions of the Cave Safely
- Not Recommended: Can Get Stuck/Unable to Leave Cave
- An often made mistake is that people think the Tek helmet protects players from the poisonous gas. This is not true.
- Each piece of SCUBA or ghillie you wear will reduce the damage the toxic gas will cause, with SCUBA reducing it by more, regardless of which slot it is (i.e. SCUBA tank alone is no more effective than just the leggings, but both together is quite effective).
- Wearing one or two pieces of SCUBA/Ghillie means you take a small amount of damage from the gas which is survivable with Enduro Stew and Medical Brew.
- The Swamp Cave houses very unique loot crates. The final room before the artifact contains Red Chests that function differently than any other loot crates in any other cave in the game. These crates operate on a loot table identical to that of surface loot beacons, in that their loot tables include basic structure blueprints and weapon attachments. While this may initially seem like a detriment, keep in mind that this ALSO includes the ability to loot fishing rods within the crates. The Swamp Cave Red Chests also operate on a 3.25 - 4.0 loot quality threshold, which is much higher than surface loot beacons, meaning the likelihood of finding Mastercraft and Ascendant quality gear is very high. The end result are Red Chests with the single greatest possibility of Ascendant quality fishing rods in the entire game.
- Running from meganeura to the entrance and dying can cause your body/bag to glitch into a wall and prevent you from retrieving gear.
- On Mobile, carnotauruses can freely access the cave, while on other platforms the carnotauruses can get stuck at the entrance.
- On Mobile, there are only pulmonoscorpius and araneo in the cave, however they are still high levelled and will inflict torpor and damage quickly. A hard hitting gigantopithecus is the best mount to cross the cave but it's heavily recommended to bring large stacks of stimberries and regeneration medicine or veggie cakes to regain health and avoid death. The Tough Skin buff and game data reversal can save you in case something goes wrong.