How do I prevent creatures from attacking my base? (2025)

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Preventing creatures from attacking your base in Subnautica is crucial for maintaining a safe and functional underwater habitat. The game features a variety of aggressive fauna that can damage your base, such as Stalkers, Bone Sharks, and even the fearsome Reaper Leviathan. Understanding the game mechanics and implementing defensive strategies will help you protect your base effectively.

First, choose your base location wisely. Some biomes are inherently safer than others. For example, the Safe Shallows and Grassy Plateaus are relatively low-risk areas with fewer aggressive creatures. Avoid building in dangerous biomes like the Dunes, Mountains, or Crash Zone, where hostile predators like Reaper Leviathans and Warpers are common. If you must build in a risky area, consider placing your base near natural barriers like cliffs or caves to limit creature access.

Next, reinforce your base with defensive structures. The **Reinforcement** module is essential for increasing your base's hull integrity, but it also makes your base more resistant to damage. Craft it using Titanium and Lithium, which can be found in shale outcrops or deeper biomes like the Lost River. Additionally, the **Bulkhead** door can compartmentalize your base, preventing flooding from spreading if one section is breached.

To deter creatures, use the **Creature Decoy** or **Perimeter Defense System**. The Creature Decoy is a deployable item that distracts nearby predators, giving you time to repair or escape. Craft it using a Wiring Kit, Copper Wire, and Lubricant. The Perimeter Defense System, available for the Seamoth and Prawn Suit, emits an electric shock to repel attackers. While not directly tied to your base, it can help you fend off threats while working near your habitat.

Another effective strategy is to use **Spotlights** and **Floodlights** to illuminate your base. Many aggressive creatures are deterred by bright light, and these tools can make your base less appealing to predators. Place them strategically around your base's exterior, especially near entry points. Crafting these requires Glass, Copper Wire, and Titanium, which are relatively easy to obtain.

For advanced players, consider building a **Moonpool** and docking a Seamoth or Prawn Suit nearby. These vehicles can serve as a first line of defense, allowing you to quickly respond to threats. Additionally, the **Cyclops** submarine can be parked near your base to act as a mobile shield, as its size and durability can deter smaller predators.

Finally, stay vigilant and monitor your surroundings. Regularly scan for nearby threats using your Scanner Room, which can detect creatures within a certain radius. If you notice a predator approaching, use the tools mentioned above to drive it away or distract it. Repair any damage to your base immediately using the Repair Tool to prevent further breaches.

In summary, protecting your base in Subnautica requires a combination of strategic location selection, defensive structures, and proactive measures. By reinforcing your base, using deterrents, and staying alert, you can minimize the risk of creature attacks and ensure your underwater habitat remains safe and functional.

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