Sub Library
🟡 Updated this year⚠️ 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
- 👍 0.7% endorsement rate
- ✅ Updated 299 days after the latest game patch — actively maintained
- 🏆 #11 of 36 Libraries mods in this game by downloads
📋 About This Mod
A library for creating customizable submarines using ThunderKit. Sub Library gives modders multiple components to replicate the behavior of the Cyclops in their submarine.
Some examples of these are:
-
[]A fire system
[
]A proximity sensor system[]Multiple scripts for spawning in objects from the Cyclops such as the steering wheel, damage points, and floodlights
[]Various utility functions for quickly applying the basic required components onto the prefab root (such as a SubRoot, SubControl, etc)
[]Adds convenience implementations for common tasks such as serialization, runtime material processing and prefab edits, equipment UI, etc.
[]Provides tools for modders to create custom flood planes, allowing them to be the highest quality submarines possible
THIS MOD WILL NOT DO ANYTHING BY ITSELF. IT IS A LIBRARY FOR CREATING SUBMARINES, AND DOES
NOT ADD ANYTHING TO THE GAME BY ITSELF
To visit the repo, click here
To view the documentation, click here
Installation:
-
[]Download the most recent version of Nautilus and install that
[
]Download the most recent version of Sub Library[]Unzip the archive file and put the "SubLibrary" folder in you plugins folder (Subnautica/BepInEx/plugins)
[]The mod is now installed
-
[]Kallie23 (32eel on Discord) - Signed distance field generator script. View the original here
[
]Abyzma (abyzma on Discord) - Mod iconTo reference Sub Library in your mod you can use the NuGet Package or reference the mod dll.
However, make sure to add a with the library GUID (com.indigocoder.sublibrary) so your mod loads after the library.
-
[]Kallie23 (32eel on Discord) - Signed distance field generator script. View the original here
-
[]Download the most recent version of Nautilus and install that
Sub Library is a library mod for creating customizable submarines using ThunderKit. It has 675 endorsements and over 102,000 downloads, indicating a solid user base. The mod is maintained by Indigocoder and was last updated in July 2026.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community trust with 675 endorsements.
- Over 102k downloads shows real demand.
- Actively updated as of July 2026.
⚠️ Cons
- No detailed documentation or feature list provided.
- Requires ThunderKit, which may be a hurdle for some.
- As a library, it's not a standalone content mod—you'll need other mods to see results.
For modders who want to create custom submarines using ThunderKit. If you're a player looking for new subs, this isn't for you—it's a building block. Skip if you're not comfortable with modding tools.
💡 Beginner Tips
- Make sure ThunderKit is installed and configured before adding Sub Library.
- Check the ThunderKit documentation for how to integrate libraries like this.
- Look for other mods that depend on Sub Library to see examples of how to use it.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- Indigocoder
- Version
- 1.7.9
- Downloads
- 102,862
- Endorsements
- 675
- Category
- Libraries
- Created
- 1/20/2025
- Updated
- 7/29/2026
🧩 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