If you are currently attempting to craft the Tadpole Depth Module, you likely realize that hunting for Celestine is your biggest hurdle. This specific material is essential for processing Strontium, which in turn is required to build the depth module designed to prevent hull breaches during deep-sea exploration.

Finding this resource requires precision, as Celestine is not found in every biome. To successfully complete your mission of finding Celestine in Subnautica 2, you must head directly to the Alien Ruins biome.

Where to Find Celestine in Subnautica 2

Locating these deposits requires careful navigation through some of the game's more dangerous territory. You cannot simply wander into the Alien Ruins; you must first complete the Tadpole Pens and successfully traverse the ominous waters surrounding the research base.

Because this biome is located at significant depths, preparation is critical to avoid a fatal descent. The most reliable location for Celestine is approximately 200 meters southeast of the Alien Ruins base. You will find the deposits on the rocks below the cliff edge, nestled in the lower depths where the terrain becomes rugged and rocky.

Step-by-Step Harvesting Guide

To ensure you gather enough resources without losing your vehicle or your life, follow these specific steps:

  • Navigate to the Coordinates: Swim southeast from the Alien Ruins, dropping over the cliff face to reach the rocky seabed.
  • Prepare Your Equipment: At depths around 250 meters, you may need to exit your Tadpole to reach the specific node locations. Ensure your Sonic Resonator is equipped to smash the hard Celestine nodes.
  • Identify the Node: Look for clusters of small, light blue, jagged crystals. They resemble large salt formations but are distinctively blue and crystalline.
  • Watch Your Back: This area is patrolled by two Needlers. These aggressive creatures can inflict significant damage, so stay alert and use your environment for cover.

Safety and Efficiency Tips

While Celestine can be found at various depths, the southeastern cliffside offers the best balance between resource availability and player safety. This specific spot is close enough to your Tadpole to manage oxygen levels effectively, allowing for quick retreats if a predator approaches.

Once you have successfully harvested the Celestine, return immediately to your processor to smelt it into Strontium. With this key component secured, you will be one step closer to equipping your Tadpole with the depth module needed to explore the deepest reaches of the ocean safely.