ECC Library BZ (BepInEx - Nautilus)
🟡 Updated this yearPreview
🔍 Analysis
- 👍 0.8% endorsement rate
📋 About This Mod
ECC Library
BZ
GitHub | Example creature code | Version for SN1ECC Library is a modding library for Subnautica Below Zero (and SN1) that is built on Nautilus. This library handles and simplifies the creation of modded creatures for modders.
Installation (Automatic)
You can use Vortex to automatically install this mod.
Installation (Manual)
-
[]If you haven’t already, download and install the Subnautica BepInEx Pack.
[
]Download the latest version of this mod.[]Place the downloaded zip file into your SubnauticaZero\BepInEx folder.
[]Right click the zip file and select extract --> unzip here (NOT "Extract all").
If you can’t find that button, you can instead open the zip file, copy
the "plugins" folder, and paste it into the BepInEx folder.
Requires Nautilus!
ECC Library BZ is the first creature modding library for Subnautica Below Zero, designed to make custom creature creation as simple as possible. It's a foundational modding tool with 144 endorsements and 16,945 downloads, last updated May 2026.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community trusted with 144 endorsements
- Solid adoption at 16,945 downloads
- Actively maintained, last updated May 2026
⚠️ Cons
- Requires BepInEx and Nautilus frameworks to function
- Does not add any creatures or content on its own — it's a library for other mods
For Subnautica Below Zero modders who want to create custom creatures without building a library from scratch. Players who use mods that depend on ECC Library BZ will need this installed as a prerequisite. Skip if you don't use any mods that list this as a requirement.
💡 Beginner Tips
- Install BepInEx and Nautilus before adding this library to your BepInEx/plugins folder
- Install this library before any mods that list it as a dependency, or they won't load
- Check the mod page of any creature mod you download to confirm it requires ECC Library BZ
📊 Mod Details
- Game
- Subnauticabelowzero Mods
- Author
- Kallie23
- Version
- 2.2.3
- Downloads
- 16,945
- Endorsements
- 144
- Category
- Library
- Created
- 4/21/2024
- Updated
- 5/20/2026
🔧 How to Install Subnautica: Below Zero Mods
Download from Nexus Mods.
📖 Full step-by-step install guide for Subnautica: Below Zero →
Visit the official mod page for specific installation instructions for this mod.
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