General
Underwater Diving Guide
Scuba gear, oxygen management, underwater loot locations, navigation, and deep ocean exploration.
Scuba gear, oxygen management, underwater loot locations, navigation, and deep ocean exploration.
Underwater exploration unlocks the ocean floor where valuable crates, resources, and blueprints await discovery. Without proper diving equipment, the ocean kills you quickly. Master scuba mechanics and oxygen management transforms underwater from deadly to profitable. The ocean contains some of Rust's richest loot for divers willing to learn the mechanics.
The diving tank holds 600 seconds of oxygen, approximately 10 minutes of continuous underwater breathing. Deeper water and faster swimming both increase oxygen consumption rates. The tank is mandatory for extended underwater time. Without it, you have roughly 30 seconds before drowning. Acquire diving tanks at Fishing Village vendors for 35 scrap or find them as drops from killed scientists.
The double diving tank holds 1,080 seconds of oxygen, almost 18 minutes underwater. It requires more components but provides extended exploration capability. Double tanks are valuable for deep ocean floor runs where standard tanks force quick returns.
The diving mask enables underwater vision. Without it, visibility is nearly zero and underwater navigation becomes impossible. Masks are essential for practical diving. They don't consume resources, only occupying equipment slot.
Fins increase swimming speed significantly and reduce fatigue from extended swimming. Without fins, underwater movement is slow and exhausting. Fins dramatically improve efficiency and reduce oxygen consumption during movement.
The diving wetsuit provides thermal protection against water cold. Deep sea is dangerously cold. Hypothermia damage is slow but deadly if ignored. Wetsuits prevent freezing damage allowing extended dives in cold water.
Oxygen drains at a constant rate regardless of depth. Shallow water preserves tanks. Deep water drains them quickly. Fast swimming drains oxygen faster than slow swimming. Manage your pace based on remaining oxygen. Calculate oxygen requirements before deep dives.
Underwater labs contain air pockets where divers can surface and breathe. These pockets restore tank oxygen to full. Plan dives to pass through air pockets periodically. Never venture far from known air pocket locations on low oxygen.
Ascending takes time. Ensure sufficient oxygen remains for complete ascent. Panic ascending uses extra oxygen. Maintain composure and ascend steadily. Leave safety margin in oxygen calculations. Arriving at surface with zero oxygen kills you.
Monitor oxygen constantly. Know your tank capacity and consumption rate. Calculate ascent oxygen cost. Plan safe routes with mandatory air pocket stops. Oxygen awareness prevents drowning deaths.
Running out of oxygen causes panic that kills you. Avoid panic situations by conservative oxygen management. Always start ascending before critical levels.
The ocean floor has scattered loot crates and debris. These crates respawn slowly over time. The Shipshape update balanced spawn locations so expect moderate loot rather than massive hauls. Regular return visits collect respawned crates.
Scattered shipwrecks and debris contain loot containers. Some debris is purely environmental. Explore systematically and investigate all structures. Debris often holds keycards, ammunition, and components.
Underwater labs on the ocean floor contain interior rooms, loot caches, and keycard-locked sections. Scientists guard lab exteriors. Moonpool access grants interior entry. Inside you find elite crates rivaling the best monuments. Labs are endgame diving objectives.
Duo submarines include sonar displays that reveal ocean floor crates and structures. Using sonar saves search time. Submarine access enables efficient loot location identification before diving.
Before any dive: diving tank, diving mask, fins, diving wetsuit, medical supplies, basic tools. Know your target locations. Establish reference points above water for navigation. Plan extraction method and boat location.
Mark boat location mentally or with visible landmarks. Study surface terrain before diving. Establish visual references for underwater navigation. Mental maps prevent disorientation underwater.
Calculate total oxygen needed for descent, exploration, and ascent. Reserve oxygen for emergencies. Start ascending when oxygen reaches 150 seconds remaining. Never gamble on oxygen availability.
Multiple divers should stay together. Establish hand signals for underwater communication. One diver watches security while another collects loot. Coordinate oxygen management so no diver reaches critically low levels. Groups make diving significantly safer.
Running out of oxygen causes drowning. Drowning is instant death once oxygen depletes. Careful oxygen tracking prevents drowning. Always maintain safe oxygen margins.
Sharks and aggressive creatures patrol deep water. Creatures can kill divers quickly. Avoid creature encounters. Submarines provide safe passage through creature zones. Fight creatures only if necessary and fully armed.
Ascending from dives does not cause decompression damage in Rust. However, surfacing in dangerous areas without checking your surroundings first can get you killed by players or scientists.
Water is cold. Without diving wetsuit, hypothermia kills rapidly. Always wear the wetsuit when diving. Cold water damage is slow but deadly if untreated.
Deep dives require careful planning. Mark air pocket routes mentally before deep descent. Calculate exact oxygen requirements. Deep dives yield the best loot but carry substantial risk. Only attempt deep dives with extensive experience.
Submarines allow descent without personal oxygen, carrying crew safely to depth. Submarines have internal air supplies. Submarines provide safe transport and extended exploration capability at depth.
Prioritize high-value items. Keycards, blueprints, and components matter. Don't waste oxygen carrying low-value items. Make multiple trips rather than overloading. Selectivity maximizes value per dive.
Excessive inventory weight slows swimming and increases oxygen consumption. Travel light and make multiple trips. Faster swimming with less load often retrieves more total loot than one slow heavy trip.
Underwater diving supports deep sea exploration. Deep sea monuments often require diving for interior access. Submarines provide safe deep diving. Boats transport divers to diving locations. Vehicles guide covers submarine operation. Radiation protection is sometimes needed in certain underwater areas.