Nautilus

⭐ ⭐⭐⭐ (10,807 endorsements) 📥 1.1M downloads 📌 v1.0.0-pre.52 📅 5/5/2023
🟡 Updated this year

By Subnautica modding organization · Libraries

⬇ Download Mod Source: Nexus Mods 📅 Updated: 7/13/2026 📅 Created: 5/5/2023
⚠️ Install Order · 2 steps
1🛠️ BepInEx — BepInEx framework Download ↗
2🧩 QModManager — QModManager Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 1.0% endorsement rate — high engagement, a strong quality signal
  • ✅ Updated 282 days after the latest game patch — actively maintained
  • 🏆 #2 of 36 Libraries mods in this game by downloads

📋 About This Mod

⚠️ Nautilus is NOT compatible with SMLHelper and is only supported on the latest version of Subnautica

Nautilus 

Source code  - Documentation -  Contributions Below Zero Version

Aims to enhance developer productivity by condensing, simplifying, and generalizing the modding experience

•  Utilities for importing custom assets into the game, including but not limited to: sprites, models, textures, and sounds

•  A simple gadget system to create custom items derived from existing items or with custom models

•  Handlers to add, edit, and/or remove crafting recipes, PDA entries, blueprints, biomes, story events, and so much more

• JSON-based language handler with support for translating mods into any desired language.

• A growing collection of utilities to simplify your experience, ranging from material conversions to storage container creation.

• Support for seamless in-game configuration menus

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Installation
  • []Download and install the Subnautica BepInEx Pack[/]

    []Download the latest version of Nautilus[/]

    []Place the downloaded zip file into your Subnautica\BepInEx\ folder[/]

    []Right click it, and select extract/unzip here (NOT "Extract all").[/]

    If you cannot find the button in step 4, you can instead open the zip file, copy the "plugins" folder, and paste it into the BepInEx folder.

    You can also use Vortex or the Subnautica Mod Manager to install Nautilus automatically.

    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    What is Nautilus?

    Nautilus is a continuation of SMLHelper with a far cleaner codebase, more convenient workflow for modders, and greatly improved maintainability. It provides all the features SMLHelper previously did, along with several new additions, improvements to existing features, overhaul

🤖 AI-enhanced — based on mod data

Nautilus is the core modding library for Subnautica, providing common helper utilities to streamline mod development. With over 10,000 endorsements and 1.1 million downloads, it's a widely adopted foundation for modders, last updated in July 2026.

✨ Key Features

Provides common helper utilities for Subnautica mod developers.
Aims to be easy to use and robust, enhancing developer productivity.
Serves as the core library for Subnautica modding.

📊 Pros & Cons

✅ Pros

  • Huge community trust with 10,807 endorsements and 1.1M downloads.
  • Actively maintained, last updated July 2026.
  • Essential for any serious Subnautica modder—it's the backbone of the modding scene.

⚠️ Cons

  • Not for players—this is a developer tool, so if you're just looking for gameplay mods, skip it.
  • As a library, it requires other mods to be useful—on its own it does nothing for your game.
🎯 Is This For You?
For Subnautica mod developers who want a solid foundation to build upon. If you're a player, you'll indirectly benefit because many mods depend on this, but you don't need to install it yourself unless a mod requires it. Skip if you're not modding.
📦 Install:Easy· Under 1 minute

💡 Beginner Tips

  • If you're a modder, check the official Subnautica modding Discord for tutorials on using Nautilus.
  • For players, only install Nautilus if a specific mod tells you to—it's a dependency, not a standalone mod.
  • Make sure to download the latest version to ensure compatibility with your game version.

📊 Mod Details

Game
Subnautica Mods
Author
Subnautica modding organization
Version
1.0.0-pre.52
Downloads
1,079,783
Endorsements
10,807
Category
Libraries
Created
5/5/2023
Updated
7/13/2026

🔗 Required By 43 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.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Subnautica commands, item IDs, and more.

Keep browsing — more Subnautica mods await

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