Subnautica 2 Prawn Suit Combat Guide: Weapons & Boss Fight Strategies

Prawn Suit Combat System Overview

The Prawn Suit is the most powerful combat platform in Subnautica 2. With its heavy armor, versatile arm loadouts, and upgradeable systems, it turns you from a vulnerable diver into a walking tank. Mastering Prawn Suit combat is essential for exploring the deepest, most dangerous biomes where leviathans and other predators lurk.

Combat in the Prawn Suit works differently from on-foot combat. You have two arm slots that can be equipped with various tools and weapons. You have a health pool (600 HP base, upgradable to 900 with armor) and a power pool that depletes as you use weapons and tools. Movement is slower than swimming, but the grappling hook gives you excellent mobility when mastered.

Prawn Suit Base Combat Stats

The two arm slots define your combat playstyle. Do you go double drill for mining and close combat? Drill + grapple for mobility and damage? Torpedo + grapple for hit-and-run tactics? The best loadout depends on the situation, and you can swap arms at any Vehicle Modification Station. Advanced players keep multiple arm sets in storage and swap before each mission.

One important thing to understand: the Prawn Suit is slow in open water. It is not a pursuit vehicle. It excels in caves, near terrain, and in confined spaces where you can use the environment to your advantage. If you try to chase a fast creature in open water, you will likely lose. Instead, let the creature come to you, or use the grappling hook to close distances quickly.

Weapon Modules and Damage Analysis

The Prawn Suit has access to several weapon and utility arm modules, each with different damage profiles, power costs, and tactical roles. Understanding exactly how much damage each weapon does -- and how efficiently it uses power -- is the key to winning tough fights.

The standard Punch Arm is your default weapon. It deals 50 damage per hit, uses minimal power, and has a fast attack speed. It is not glamorous, but it is reliable and never runs out of ammo. The Drill Arm is primarily a mining tool, but it also deals damage-over-time when held on a target -- about 30 damage per second. It is surprisingly effective against large, slow targets that you can stay attached to.

Weapon Damage Comparison

Looking at raw DPS, the Punch Arm is actually the most damage-efficient weapon in the game -- if you can stay in melee range. The problem is staying in range against fast or dangerous enemies. The Torpedo Arm deals excellent burst damage from range but has limited ammo and high power cost. The Drill Arm has the lowest DPS but can mine and damage simultaneously, making it great for situations where you are fighting near mineral deposits.

For most combat situations, the best loadout is a combination: Grappling Hook for mobility + Torpedo Arm for burst damage, or Grappling Hook + Punch Arm for sustained melee combat. The grappling hook is almost always one of your two arms in combat because it gives you the mobility to control engagement range and position.

Essential Combat Upgrade Modules

Beyond arm weapons, the Prawn Suit has several upgrade modules that dramatically improve its combat effectiveness. These passive and active upgrades can turn a standard Prawn Suit into a war machine capable of taking on the game's toughest enemies.

The Shield Generator is the most important combat upgrade. When activated, it creates a temporary energy shield that absorbs all incoming damage for 5 seconds. It has a 15-second cooldown and consumes 20 power per activation. Used correctly, the shield lets you negate the most dangerous attacks from leviathans and other large predators. It is the difference between winning a fight and becoming a snack.

Combat Upgrade Priority

The Armor Plating module is another must-have. It increases your maximum health from 600 to 900 -- a 50% boost that gives you much more margin for error in tough fights. Combined with the Shield Generator, you have both higher max HP and the ability to periodically negate damage entirely. This combination is the foundation of any serious combat build.

Speed and Jump Jet upgrades are about mobility. In combat, being faster means you can dodge attacks, chase enemies, and disengage when needed. Two Jump Jet upgrades give you enough vertical mobility to fight effectively in any terrain. For cave combat especially, mobility upgrades are just as important as damage upgrades because they let you use the environment to your advantage.

Standard Enemy Combat Techniques

Before you take on leviathans, you need to master combat against the game's standard predators. Sand Sharks, Bone Sharks, Stalkers, Crabsnakes, and Ampeels are the most common hostile creatures you will face. Each has different attack patterns and requires a different approach.

Sand Sharks are the easiest predator to fight. They are medium-sized, deal moderate damage, and have a straightforward charge-and-bite attack pattern. With a Prawn Suit, you can simply stand your ground and punch them. Two to three solid punches kill a Sand Shark. Use your shield if you mistime a dodge, but against Sand Sharks you probably will not need it. They are good practice for learning the timing of melee combat.

Common Enemy Combat Guide

Against Bone Sharks, timing matters more than raw damage. Bone Sharks circle and then charge -- you need to dodge sideways at the last moment, then counter-attack while they are recovering from their miss. A well-timed punch combo during their recovery can take them down in 2-3 hits. Bone Sharks also respond well to the Grappling Hook: grapple them, reel yourself in, and punch while they are stunned from the impact.

Ampeels are more dangerous. Their electric shock attack deals significant damage and can stun you briefly, leaving you vulnerable to follow-up attacks. Never fight an Ampeel at close range for long. Use torpedoes from medium range, or grapple in for 1-2 punches then grapple away. Their electric attack has a limited range, so if you stay 20+ meters away, you are safe from the shock.

Leviathan Fight Strategies

Leviathans are the ultimate combat challenge in Subnautica 2. These massive creatures have enormous health pools, devastating attacks, and the ability to kill an unprepared player in seconds. But with the right Prawn Suit loadout and strategy, every leviathan in the game is beatable.

The first rule of leviathan fighting is: never fight without an escape plan. Even the best players get overwhelmed sometimes. Before engaging a leviathan, identify your exit route and make sure you have enough power to disengage. Keep your grappling hook ready -- it is your best tool for both attacking and escaping.

Leviathan Stats and Fight Difficulty

The standard leviathan killing technique is the "grapple and pound." You use your Grappling Hook to attach to the leviathan, reel yourself in close, and then unload with your other weapon (torpedoes or punches) at point-blank range. While grappled, you are hard for the leviathan to shake off, and you can deal continuous damage. Use your Shield Generator whenever the leviathan is about to hit you.

For Reaper Leviathans specifically, the grapple point is the head or upper body. Grapple onto the side of its head, then fire torpedoes directly into its face. It takes about 15 torpedo hits to kill a Reaper. Bring 20 to be safe. If you run out of torpedoes, switch to punching -- it takes longer (about 80-100 punches) but it works.

Sea Dragons are in a different league. They have 8000+ HP, fire-based attacks that burn you over time, and multiple attack patterns. To fight a Sea Dragon, you need a fully upgraded Prawn Suit with max armor, shield generator, and two torpedo arms (or torpedo + grapple). Stay mobile, use the environment for cover, and chip away at its health with torpedoes. Expect to use 25+ torpedoes and go through 2-3 power cells. The reward is bragging rights and one of the rarest trophies in the game.

Advanced Combat Tactics

Beyond basic weapon swapping and shield usage, there are advanced combat techniques that separate good Prawn Suit pilots from great ones. These tricks exploit game mechanics, use the environment, and maximize your damage output while minimizing damage taken.

One of the most powerful techniques is "grapple momentum damage." When you grapple onto a creature and reel yourself in, the impact of your Prawn Suit hitting the creature deals bonus damage on top of your weapon. If you grapple from far away and build up speed, the impact can deal 50+ extra damage. Combine this with a punch at the moment of impact, and you effectively double the damage of your engagement.

Advanced Techniques List

• Grapple Impact Damage: Grapple from range, build speed, punch on impact for double damage
• Shield Timing: Activate shield just before an attack lands to waste minimal duration
• Terrain Kiting: Lead enemies through tight spaces where they cannot maneuver
• Power Management: Turn off non-combat modules before fights to save power for weapons
• Fall Damage Exploit: Jump and let gravity pull you down onto enemies for impact damage
• Stasis Lock: Use stasis rifle (on foot) + Prawn Suit damage for safe DPS
• Hit-and-Run: Grapple in, attack, grapple out before enemy can counter

Terrain kiting is particularly effective against large enemies like leviathans. Lead them into cave systems, through narrow passages, or around rock formations. Their large size makes it hard for them to turn and maneuver in tight spaces, while your Prawn Suit is small and agile. You can pop out, fire a torpedo, and disappear back into cover before they can attack. This is the safest way to fight leviathans, though it takes longer than the grapple-and-pound method.

Another advanced tactic is the "combined arms" approach using both the Prawn Suit and on-foot weapons. You exit the suit, fire a Stasis Rifle shot to freeze the enemy, then hop back in the suit and unload with torpedoes while they are frozen. This requires practice and quick reflexes, but it lets you deal massive damage safely. Just make sure your Prawn Suit is parked somewhere accessible and you can get back in quickly.

Post-Combat Recovery and Maintenance

Winning a fight is only half the battle. After combat, you need to repair your Prawn Suit, restock supplies, and plan your next move. Proper post-combat maintenance ensures your Prawn Suit is always ready for the next fight.

First priority after any fight: check your hull integrity. Open the Prawn Suit status menu and see how much damage you took. If you are below 50% health, find a safe spot and perform emergency repairs. You can repair the Prawn Suit with a standard Repair Tool while standing outside it, or (if you have the upgrade) the Hull Repair Module will slowly fix it automatically.

Post-Combat Checklist

1. Confirm the kill: Make sure the enemy is actually dead, not just retreating
2. Check hull: Assess damage and repair if below 50%
3. Check power: How much power is left? Do you need to head back?
4. Restock ammo: If you used torpedoes, note how many you have left
5. Collect loot: Harvest any useful drops from the defeated enemy
6. Assess situation: Is the area safe? Any other threats nearby?
7. Decide next move: Continue exploring or return to base?

Power management after combat is critical. The Prawn Suit's power recharges very slowly on its own. If you have a Thermal Reactor module and you are near a heat source, you can wait for it to recharge. Otherwise, you need to return to your base or vehicle to swap power cells. Always leave at least 20% power reserved for the trip home -- running out of power in a dangerous area is a death sentence.

For long expeditions with multiple expected fights, bring spare torpedoes and extra power cells. Store them in your Prawn Suit's storage modules or in a nearby support vehicle (like a docked Seatruck). A well-provisioned Prawn Suit can operate independently for hours deep in enemy territory, as long as you manage your supplies carefully.

Finally, know when to retreat. If you took heavy damage in a fight and there are more enemies around, do not be a hero. Fall back, repair, restock, and come back stronger. The ocean is not going anywhere. There is no shame in living to fight another day -- and every experienced Prawn Suit pilot has retreated from a bad situation at some point.