BetterACU (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
- 👍 1.2% endorsement rate — high engagement, a strong quality signal
- ✅ Updated 41 days after the latest game patch — actively maintained
- 🏆 #34 of 456 Gameplay mods in this game by downloads
📋 About This Mod
Overall Improvement of the Alien Containment Unit.
Configurable number of allowable fish, Auto feed into bioreactors, Ampeel power generation, Ocean re-population capabilities.
Alien Containment Unit is configurable to allow between 10(default) up to 100 for normal sized tank or 20-200 for the large room double tank.
After the ACU reaches full capacity it will begin to put newly bred fish into bioreactors that are attached to the base.
If after all Bioreactors are full or if you have no Bio reactors then it will begin to release bred fish into the ocean to re-populate the area around your base.
Overflowing into the ocean is currently set to release 1/10 of the total fish in the tank per day meaning if you have 10 fish in the tank it will only add 1 to the ocean per day.
Breeding Ampeels, Crabsquid or Ghost Leviathans in an ACU will give extra base power capacity per and power will be generated at a steady rate configurable in the menu.
BetterACU (Bepinex) by MrPurple6411 is a gameplay mod that improves the Alien Containment Unit in Subnautica. It has 646 endorsements and over 53,000 downloads, with a recent update in November 2025. The mod is popular and actively maintained, making it a reliable choice for players seeking enhanced ACU functionality.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community-approved with 646 endorsements and 53k downloads.
- Recently updated, so likely compatible with current game version.
- Author is known for quality mods (MrPurple6411).
⚠️ Cons
- Requires BepInEx, which adds setup complexity.
For Subnautica players who want a better Alien Containment Unit and don't mind installing BepInEx. If you're looking for specific features, you'll need to check the mod page or comments. Skip if you prefer vanilla ACU or dislike mod dependencies.
💡 Beginner Tips
- Install BepInEx first, then drop the BetterACU files into the BepInEx/plugins folder.
- Check the mod's comments section for any reported issues or extra setup steps.
- If you're new to modding, follow a BepInEx installation guide for Subnautica to avoid common pitfalls.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- MrPurple6411
- Version
- 2.0.2.1
- Downloads
- 53,450
- Endorsements
- 646
- 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.
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