Precursor Oxygen Tank
🟠 Updated over a year ago⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.9% endorsement rate
- 🏆 #42 of 192 Items mods in this game by downloads
📋 About This Mod
Adds a precursor themed oxygen tank with 1000 seconds of oxygen and its own PDA encyclopedia entry. Both are unlocked upon scanning the blue tablet item.
This mod is meant to be used with large DLC sized endgame/postgame mods; like RotA, CotV, Prototype Expansion, and TRP.
Recently updated to 2025 version but still supports 2023 (however, the two versions are in different files)
Vortex/Automatic Installation:
- []¯\_(ツ)_/¯
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[]Unzip File and locate "plugins" folder
[]Find "Subnatica/BepInEx" file directory
[]Drop Plugins Folder Into the BepInEx folder
Adds a precursor-tech oxygen tank with the highest oxygen capacity in the game. A simple item mod for Subnautica players who want extended underwater exploration without frequent resurfacing. 116 endorsements and 12,893 downloads show steady community interest.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge oxygen capacity means way less time swimming back to the surface
- Solid community trust with 116 endorsements and nearly 13k downloads
- Fits the game's lore with precursor tech
⚠️ Cons
- Last updated September 2025 — might not work with future game patches
- Only adds one item, so if you want a full precursor gear set, this is just a start
For Subnautica explorers who hate the constant oxygen timer and want to dive deeper without building a million bases. If you're a completionist looking for lore-friendly gear, this is a nice pickup. Skip if you want gameplay overhauls — this is a single item mod.
💡 Beginner Tips
- Make sure the mod is placed in the correct folder (usually Subnautica/BepInEx/plugins) if using BepInEx.
- Check the mod's page for any required dependencies like QModManager or BepInEx — the description doesn't mention them, so test after install.
- If the tank doesn't appear in your inventory, try crafting it at a fabricator — it might be a blueprint you need to unlock.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- Nathan
- Version
- 1.0.0
- Downloads
- 12,893
- Endorsements
- 116
- Category
- Items
- Created
- 8/31/2025
- Updated
- 9/7/2025
🧩 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.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Subnautica commands, item IDs, and more.
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