The Hydra Submarine
🟠 Updated over a year ago⚠️ Install Order · 3 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 1.1% endorsement rate — high engagement, a strong quality signal
- 🏆 #5 of 124 Vehicles and Upgrades mods in this game by downloads
📋 About This Mod
This is an ALPHA version of the Submarine, used to collect feedback for the final mod.
Please report any issues or let us know your opinion on Nexusmods or the Discord server.
This mod is the second Void Shard for Subnautica: Call of the Void, featuring a new Submarine!
The Hydra class submarine has been synthesized by your PDA utilizing partial alien blueprints and existing Alterra technology.
It features a rotating body allowing for exploration of tight spaces while maintaining high average speeds and pressure resistance.
The AdvancedControlMode allows pilots to manually determine rotation while remaining up-right thanks to the gyroscopic pilot chair.
Controllers are NOT supported in this version, but will be in the final mod.
Currently, this mod breaks controller support for the entire game while it's installed!
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Requirements:
- Nautilus (Pre. 33)
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Credits:
- Modding: Lyonic, Lee, Metious, Indigocoder, EldritchCarMaker
- Art: Aci, Trix, Lumoize
- Sound: Marbul, Junezi
Widr Studios (outsourced)
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Known Issues:
- Submarine colors look off
- Elevator SFX are not properly aligned
- Autopilot is not disabled when leaving the Hydra, causing it to keep going indefinitely
- The "intro" video does not play properly on some systems
- If you can't see the Hydra in the MVB, try the "unlock hydra" command
The Hydra Submarine is the second Void shard for Subnautica: Call of the Void, adding a fast and agile exploration vehicle with unique systems, an interactible upgrade screen, living quarters, and a storage room. It's a content-rich addition for players seeking new underwater mobility and base-like features.
✨ Key Features
📊 Pros & Cons
✅ Pros
- High community trust with 1,489 endorsements and over 138k downloads.
- Adds a substantial vehicle with living quarters and storage, not just a reskin.
- Interactible upgrade screen suggests deeper customization options.
⚠️ Cons
- Requires the Call of the Void mod, so it's not standalone.
- Last updated in August 2025 — check for patches if you're on a newer game version.
For Subnautica players who want a new, fast exploration vehicle with extra features like living quarters and storage. If you're already using Call of the Void, this is a must-have. Skip if you prefer vanilla-only or don't want to manage multiple mods.
💡 Beginner Tips
- Make sure you have the base Call of the Void mod installed first, as this is an add-on.
- Use a mod manager like Vortex to handle dependencies and load order automatically.
- Check the mod's page for any required game version or patch notes before installing.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- Call of the Void Team
- Version
- 1.1.0
- Downloads
- 138,765
- Endorsements
- 1,489
- Category
- Vehicles and Upgrades
- Created
- 11/30/2024
- Updated
- 8/17/2025
🔗 Required By 2 Mods
These mods list this mod as a dependency.
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Subnautica Mods
Download from Nexus.
📖 Full step-by-step install guide for Subnautica →
Visit the official mod page for specific installation instructions for this mod.
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