Key Takeaways
- Seamoth loadout for exploration: Depth MK3 + Storage + Sonar + Perimeter Defense. You can reach 900m and escape any predator.
- Prawn loadout for mining: Drill Arm + Grapple Arm + Depth MK2 + Thermal Reactor. Infinite power near heat sources.
- The ultimate base: 4 Thermal Plants on a vent, Moonpool, Scanner Room, Water Filtration, indoor growbed with Marblemelons.
Seamoth: The Explorer Build
| 1 | Depth MK3 | 900m reach, covers 90% of map |
| 2 | Storage | +16 inventory in the field |
| 3 | Sonar | Reveals terrain in dark/deep water |
| 4 | Perimeter Defense | Zaps predators, one-hit kills small threats |
This build makes you untouchable. Depth MK3 reaches every biome except deepest lava. Sonar reveals cave entrances and resources. Perimeter Defense one-shots Stalkers and drives off Reapers.
Prawn: The Mining Build
| Left Arm | Drill Arm | Mines large resource deposits |
| Right Arm | Grapple Arm | Fast travel, grabs terrain |
| 1 | Depth MK2 | 1100m, reaches Lost River |
| 2 | Thermal Reactor | Infinite power near heat |
| 3 | Storage | +24 inventory for mining runs |
| 4 | Jump Jet Upgrade | +50% jump height |
Grapple + Jump Jet makes Prawn surprisingly mobile. Grapple the ground ahead, jump, repeat. You can travel faster than Seamoth with practice.
Cyclops: Mobile Base Build
| 1 | Depth MK3 | 1700m, reaches everywhere |
| 2 | Thermal Reactor | Recharges from lava/heat |
| 3 | Sonar | Detect threats ahead |
| 4 | Shield Generator | Emergency Reaper defense |
| 5 | Fire Suppression | Auto-extinguishes fires |
| 6 | Decoy Tube | Distract Leviathans |
Interior: 8 lockers, indoor growbed (4 Marblemelons), Fabricator, Battery Charger, Power Cell Charger, Radio. Fully self-sufficient forever.
Ultimate Base Design
Power: 4 Thermal Plants on a vent (1,000 power, infinite).
Rooms: Multipurpose x5 — Moonpool, Scanner Room, Water Filtration, indoor farming, storage/crafting.
Defense: Foundation + Reinforcement panels (adds hull integrity).
Location: 150m depth near thermal vent, central map position for easy exploration.
Tool Loadout: What to Carry
Every expedition: Seaglide, Survival Knife, Scanner, Repair Tool, Laser Cutter, 2 Batteries, Beacon, First Aid Kit, 2 Water, 2 Marblemelons. This handles any situation for 2+ hours before returning to base.
Upgrade Priority Path
1. Scanner + Knife + Fins + O2 Tank (hour 1)
2. Seaglide + Repair Tool (hour 2)
3. Seamoth (hour 3)
4. Seamoth Depth MK1 (hour 5)
5. Moonpool + Vehicle Upgrade Console (hour 8)
6. Prawn + Drill Arm (hour 12)
7. Cyclops (hour 20)
8. Depth upgrades for all vehicles (hours 20-30)