Mod Structure Helper
🟡 Updated this year⚠️ 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
- ✅ Updated 258 days after the latest game patch — actively maintained
- 🏆 #1 of 7 Modding Tools mods in this game by downloads
📋 About This Mod
Mod Structure Helper
The Structure Helper tool allows anyone to:
-
[]Create new structures in the world out of entities, big or small.[/]
[]Browse an organized list of all vanilla & modded entities.[/]
[]Place any desired entities into the world.[/]
[]Paint grass, plants, outcrops, etc.[/]
[]Move, rotate, scale, and drag entities.[/]
[]Construct new wrecks, alien bases, etc..[/]
[]Share your structures with anyone.[/]
Quick start instructions
Once you have the mod installed, it is recommended you create a new creative world whenever you plan on editing a structure. This is because of issues with syncing your structures after saving/loading the game.
Creating structures
To create a new structure, open the structure helper menu (F4 by default) and press 'Create new structure'. For the mod folder name, use the name of a mod that can load structures. As of writing this, the only mod that loads structures is the Epic Structure Loader. So, put the folder name which is "EpicStructureLoader". The structure name is entirely up to you.
Editing structures
Mod structures are centered around new entities. Structures cannot remove entities that were added by the game, though, due to various limitations. You'll need to start by choosing a location to place your entities, then determine which entity you want to place. You can either place one directly from the entity browser or choose an entity to brush with. Simply place entities and move them around using all the tools at your disposal to create your structure.
Don't forget to save frequently! The save bind is control + S, so keep your fingers glued to those keys.
Distributing your structure to others
When you are ready to share your creation, you can simply upload your .structure file(s) to Nexus (which is likely found in the EpicStructureLoader/Structures folder), and list the Epic Structure Loader as a dependency. Do NOT list this mod, the Structure Helper, as a dependency, because that will probably confuse users...
Features
[]A new structure helper menu, opened with F4 or through the pause menu by default.[/]
[]Configuration for all keybinds![/]
[]All the basic essential tools: select, translate, rotate, scale, drag,
entity painter, object picker, duplicate, select all, undo, delete.[/]
Mod Structure Helper is an in-game editor for creating structures, biomes, and world additions. It adds a menu with tools for placing objects directly into the game world, supporting both base game and modded content. Ideal for modders and builders.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community trust with 310 endorsements and over 35k downloads.
- Opens up creative possibilities for building and modding without external tools.
- Actively maintained, last updated June 2026.
⚠️ Cons
- May require some learning curve to master all the tools.
For modders and builders who want a powerful in-game editor to create custom structures and biomes. Also great for players who enjoy world-building and want to add unique content to their game. Skip if you prefer pre-made content over creating your own.
💡 Beginner Tips
- Check the mod's forum or comments for user-made tutorials on using the editor.
- Start with simple structures to get familiar with the placement tools before tackling complex biomes.
- If you're using other mods, test compatibility in a separate save to avoid conflicts.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- Kallie23
- Version
- 1.6.0
- Downloads
- 35,316
- Endorsements
- 310
- Category
- Modding Tools
- Created
- 7/16/2024
- Updated
- 6/19/2026
🔗 Required By 3 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