Cyclops Nuclear Upgrades (Purple Edition) (Nautilus)
🟡 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
- 👍 1.5% endorsement rate — high engagement, a strong quality signal
- ✅ Updated 41 days after the latest game patch — actively maintained
- 🏆 #51 of 456 Gameplay mods in this game by downloads
📋 About This Mod
New Upgrade Modules!
Cyclops Nuclear Reactor Module
· Helps with getting through the mid-game when the sun is too far but the thermal chargers aren't in reach yet.
· Be careful not to abuse it as running these too long can cause them to overheat and temporarily shut down.
· Where can I craft this? This module can be found in the Modification Station and the Nuclear Fabricator.
· What do I need to unlock this? You'll have it available once you've unlocked the Base Nuclear Reactor
New Buildables!
Nuclear Fabricator
· A specialized fabricator for handling hazardous nuclear materials.
· Entirely optional for 99% of what you'll want to do with this mod. It's just a cool little addition for fun and
· You can craft any small nuclear item from this fabricator.
· Where can I craft this? You will find it in your Habitat Builder under Interior Modules.
· What do I need to unlock this? You'll have it available once you've unlocked the Base Nuclear Reactor.
New Features Powered by MoreCyclopsUpgrades (Purple Edition)
Power Indicator Info
· Displays an icon at the Cyclops Helm HUD and Holographic HUD whenever this module is producing power
· This display will also show a readout of the current outside temperature
PDA Icon Overlay
· When viewing these modules from the PDA screen, additional info can be viewed at a glance
· View the current operating temperature of the nuclear module
· View the remaining energy at a glance
· View if the module has overheated
Source code on GitHub
· CyclopsNuclearModule
· DepletedCyclopsNuclearModule
· NuclearFabricator
This mod adds a compact nuclear reactor that fits into the Cyclops upgrade console, powered by MoreCyclopsUpgrades (Purple Edition). It also includes a Nuclear Fabricator for building nuclear crafts in one place. A niche but functional addition for Subnautica players using the Purple Edition framework.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community trust with 513 endorsements and over 34k downloads.
- Integrates neatly with the upgrade console, saving space.
- Nuclear Fabricator centralizes crafting, cutting down on trips.
⚠️ Cons
- Requires MoreCyclopsUpgrades (Purple Edition) — no standalone option.
- Last updated in late 2025, but no explicit compatibility notes for the latest Subnautica patch.
- Niche appeal: only useful if you're already using the Purple Edition mods.
For Subnautica players who run MoreCyclopsUpgrades (Purple Edition) and want a compact nuclear power solution for the Cyclops. Skip if you're not using that framework or prefer vanilla power options.
💡 Beginner Tips
- Install MoreCyclopsUpgrades (Purple Edition) first, then drop this mod's files into the BepInEx plugins folder.
- Use the Nuclear Fabricator to stockpile reactor rods before long expeditions.
- Check the mod's page for any load order notes if you use other Cyclops mods.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- PrimeSonic - MrPurple6411
- Version
- 1.0.0.1
- Downloads
- 34,088
- Endorsements
- 513
- Category
- Gameplay
- Created
- 11/26/2023
- 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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