CurseForge · Minecraft mod
RED OS
RED-OS is a comprehensive technological suite for Minecraft, designed to automate logistics, enhance security, and master spatial energy. No longer just a collection of machines, it is a unified operating system for your world.
Quick answer
Which RED OS release should I use?
RED OS RED-OS Update: 0.4.0-B | New Feature: Locking Tag targets 1.21.11 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. 1 required mod needs a matching file.
Where it goes
Is RED OS required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does RED OS RED-OS Update: 0.4.0-B | New Feature: Locking Tag need?
RED-OS Update: 0.4.0-B | New Feature: Locking Tag. Change the file and its required mods may change too.
Install Fabric API, Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add RED OS without breaking your instance.
Built for RED OS RED-OS Update: 0.4.0-B | New Feature: Locking Tag. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use RED-OS Update: 0.4.0-B | New Feature: Locking Tag. It targets 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API, Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside RED-OS Update: 0.4.0-B | New Feature: Locking Tag. It opens that exact file at the source.
About this project
What does RED OS add?

🔴 RED-OS: Advanced Technology Ecosystem (BETA)
RED-OS is a technological suite for Minecraft, it is a unified operating system for your world.
🚀 Key Features
Global Communication Suite: The ultimate command center for player interaction. Features a high-performance Global Chat, an Encrypted Private Messenger Vault for secure player-to-player communication with persistent local history, and a seamless Discord Bridge to connect your in-game world with your external community in real-time. Coordinate logistics and stay connected with your team anywhere in the world.
Administrative & Security Operations (OP Level): RED-OS provides streamlined access for authorized world administrators. Players with Operator privileges can access the Admin Console, designed for the convenience of monitoring global network health and managing player permissions. This layer provides OPs with an efficient overview to maintain order and security across the technological ecosystem without unnecessary complexity.
Autonomous Drone Logistics: Deploy intelligent Drone Units managed by a centralized Master Controller. These autonomous agents navigate complex Mesh Networks to transport resources with high efficiency, featuring built-in survival protocols and intelligent back-pressure detection for full containers.
Surveillance & Remote Automation: Maintain total situational awareness with high-definition Wireless IP Cameras, Smart Motion Sensors, and Remote Redstone Triggers. Monitor your facility through real-time video feeds, configure automated alerts, and remotely activate redstone machinery from anywhere on the network via your handheld.
Quantum Teleportation Infrastructure: Master the Quantum Porter system for instantaneous long-range logistics and personnel travel. Utilizing advanced spatial mapping, the Porter provides secure, zero-latency movement across your entire RED-OS network.
High-Energy Defense & Mobility: Protect your assets with the Plasma Pulse Disintegrator weapon and master the skies with the Ion Exo Chestplate. This advanced jetpack provides high-speed aerial mobility with built-in glider functionality and supersonic capabilities.
🛰 How it Works: Discovery & Progression
In Survival mode, RED-OS utilizes an advancement-based unlock system. Hardware tiers are unlocked as soon as the required items are detected in your inventory.
- Tier 1 (Base Technology): Automatically unlocks when a
ClockandRedstone Torchare detected in your inventory. Grants access to basic networking, cameras, and sensors. - Tier 2 (Advanced Spatial): Requires Tier 1 completion and discovery of an
Echo Shard. Unlocks the Quantum Porter and Plasma Disintegrator.
Note: For architects, all features are immediately available in Creative Mode by searching for RED-OS.
🛠 Requirements
Minecraft: 1.21.11 Fabric Loader: 0.18.1 or higher Fabric API: 0.141.2+1.21.11
📦 Installation
Download the latest .jar from the Releases page. Place the file in your Minecraft mods folder. Ensure you have the correct version of Fabric API installed.
🐛 Bug Reporting & Feedback
We are currently in BETA. Stability is our primary goal for the v1.0 release. If you encounter any issues, please report them via the GitHub Issues page.
Your feedback helps make RED-OS better for everyone!
Project description from CurseForge.
Pick your setup
RED OS by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.11
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
RED OS versions and loaders
RED-OS Update: 0.4.0-B | New Feature: Locking Tag
RED-OS-0.4.0-B.jar
11 Mar 2026
RED-OS-0.3.0-B
RED-OS-0.3.0-B.jar
6 Mar 2026
RED-OS-0.2.3-B
RED-OS-0.2.3-B.jar
3 Mar 2026
0.2.2-B
RED-OS-0.2.2-B.jar
1 Mar 2026
0.2.1-B
RED-OS-0.2.1-B.jar
27 Feb 2026
0.1.15-BETA
RED-OS-0.1.15-BETA.jar
20 Feb 2026
0.1.14-BETA
RED-OS-0.1.14-BETA.jar
19 Feb 2026
0.1.13-BETA
RED-OS-0.1.13-BETA.jar
18 Feb 2026
0.1.12-BETA
RED-OS-0.1.12-BETA.jar
17 Feb 2026
Looking for an older file? The official CurseForge project page is in Resources.