The Red Plague (Act 1 and 2)
🟡 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
- 👍 1.0% endorsement rate
- ✅ Updated 249 days after the latest game patch — actively maintained
- 🏆 #1 of 126 Adventure mods in this game by downloads
📋 About This Mod
The Plague Spreads... to a MASSIVE UPDATE!
Content warning: Turn back if you don't like stylized body horror.
If you are a streamer or content creator and you don't understand how to install or use TRP, Please reach out to `NoContextCass` on Discord.
The download for Act 2 includes Act 1. It is an update; you do not need to download two files here.
The Red Plague is a mod developed by a plethora of people. Please join our Discord server if you need help.
The Red Plague Act 2 has arrived, with massive updates and overhauls of Act 1 and loads of entirely new content. TRP is a large story-driven mod that intends to entirely transform the experience of Subnautica by adding a massive, entirely custom story in an alternate universe with new gameplay and horror elements.
The mod has been in development since 2023, which has ramped up over time as its team grew. While this mod is based on the YouTube series by Anthomnia, it tells its own story through many acts that culminate into the biggest content and story mod ever for Subnautica.
If you want to support the development of the mod you can visit our Patreon. Don't forget to join our Discord as well!
The story of The Red Plague begins as soon as you repair the Radio. The Plague must spread!
The Red Plague Act 2 features...
- A new and completely overhauled story
- Three leviathans around the map
- Many new locations to explore
- 22+ other new creatures
- Several new collectible resources
- An original, vast biome with entirely new content
- Amalgamations of existing creatures
- Insanity mechanics with countless scares
- Multiple new tools with unique and novel functions
- New buildable technology for your bases
- Various cinematic events throughout the story
- Five new main characters and many side characters
- New lore expanding upon Alterra and the precursors
Please note that we fully recommend a new save to avoid bugs and witness all of the new content, but it is possible to play on an old one.
Warnings and incompatibilities:
The mod 'Solid Terrain' is INCOMPATIBLE with TRP.
The Advanced Inventory mod and Architects' Library may cause some issues. Mods that have not been updated for the 2025 patch may also caus
The Red Plague (Act 1 and 2) is an adventure mod where you play a researcher investigating a deadly disease under the direction of Alterra executives. With 1,495 endorsements and 151,025 downloads, it's a popular narrative-driven experience. The description is cut off, but the premise suggests a story-heavy survival mystery.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Strong community support with 1,495 endorsements and over 151k downloads
- Intriguing story premise that hooks you from the start
- Regularly updated (last update June 2026) so it's likely compatible with current game versions
⚠️ Cons
- Description is cut off, so you're left guessing about gameplay mechanics and length
- Only two acts so far—might leave you wanting more if the story isn't complete
For adventure fans who love story-driven mods with a mystery twist. If you enjoy unraveling conspiracies and surviving in a plague-ridden world, this is for you. Skip if you prefer action-packed gameplay over narrative.
💡 Beginner Tips
- Check the mod's page for any required dependencies or load order notes before installing.
- Since it's an adventure mod, save often to avoid losing progress during story choices.
- If you're new to modding, use a mod manager to keep track of updates and avoid conflicts.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- The Plague Spreads Team
- Version
- Act2-MegaHotfix
- Downloads
- 151,025
- Endorsements
- 1,495
- Category
- Adventure
- Created
- 11/5/2024
- Updated
- 6/10/2026
🔗 Required By 1 Mod
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.
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