Customize Your Spawns (Bepinex)
🟡 Updated this yearThis mod was updated after the recent game update — it should work on the current version. (Subnautica Security Hotfix)
⚠️ 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
- 👍 0.6% endorsement rate
- ✅ Updated 41 days after the latest game patch — actively maintained
- 🏆 #11 of 456 Gameplay mods in this game by downloads
📋 About This Mod
# Customize Your Spawns
Allows you to change what and where creatures/chunks/deposits/fragments are spawned in the world base on biomes.
This is a VERY powerful mod that does NOTHING on its own.
Configuration files are created in the form of Json files and are put into a subfolder called ChangesToLoad.
Any file located in this folder that ends with .json and does not contain the word Disabled in the name of the file will be loaded and the contents parsed.
The format of the contents of this file consist of a TechType aka ItemID followed by a List of Biome/Count/Probability information.
"ItemID": [
"biome": "safeShallows_Wall",
"count": 1,
"probability": 1. 0
list of vanilla ItemIDs
(https://web.archive.org/web/20201025050726/https://subnauticacommands.com/items)**
Currently The Cyclops will not work as it is a special system of its own and cannot be spawned this way.
The biome type pulled from the biome list file or from checking the default distribution file.
(DO NOT JUST TYPE SafeShallows AND EXPECT IT TO WORK CAUSE IT WONT!)
How many are spawned at a time when the game decides to spawn from this.
- Probability:
This is a weighted value from 0. 001 to 1000+.
Values for the probability range from 0. 001 to 1. 0 where 0. 001 is a 0. 1% chance if nothing else is in the biome and 1. 0 which means that no matter what something will be spawned. things set above 1. 0 have a even higher weighing when more then one thing has been chosen to be spawned.
Using this information you can do things from making Peepers spawn in the ALZ, up to having random seamoth/prawn vehicles spawn.
### WARNING: The Reefbacks and Leviathans from the default game are hand placed onto the map and will NOT! be altered by anything you do using this mod. You can use this to add more Leviathans to the world however those default game leviathans will remain in there original locations.**
Customize Your Spawns (Bepinex) is a gameplay mod for Subnautica that lets you control creature, chunk, deposit, and fragment spawns by biome. With 596 endorsements and nearly 100k downloads, it's a popular tool for players who want to tailor world generation. Last updated November 2025.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Strong community trust with 596 endorsements and nearly 100k downloads.
- Actively maintained, last updated November 2025.
- Gives you granular control over spawns per biome—perfect for custom playthroughs.
⚠️ Cons
- Requires BepInEx, so you'll need to set that up first if you haven't.
- No detailed instructions in the description—you'll have to figure out the config format yourself.
- Potential compatibility issues with other mods that alter spawns or world generation.
For Subnautica players who want to fine-tune their world—whether you're making a harder survival experience, a resource-rich sandbox, or just want to see specific creatures in specific places. Skip if you're happy with vanilla spawns or don't want to fiddle with config files.
💡 Beginner Tips
- Make sure BepInEx is installed correctly before adding this mod—check the BepInEx folder structure.
- Back up your save before changing spawns, as drastic changes could make areas too dangerous or too empty.
- Start with small tweaks to one biome to see how it affects gameplay before overhauling everything.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- MrPurple6411
- Version
- 2.0.0.1
- Downloads
- 98,621
- Endorsements
- 596
- Category
- Gameplay
- Created
- 12/25/2022
- Updated
- 11/13/2025
🧩 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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