MossyMod
Mesh-powered multiplayer discovery for Minecraft.
MossyMod is an experimental multi-version Fabric mod that brings decentralized peer-to-peer networking into Minecraft using the MOSS mesh networking core.
Instead of relying entirely on traditional server infrastructure, MossyMod allows players to discover friend-hosted worlds across a distributed mesh network and experiment with direct P2P multiplayer connections.
Features
- 🔍 Discover friend worlds over the MOSS mesh
- 🌍 Publish integrated singleplayer worlds into the network
- ⚡ Experimental Netty-over-MOSS transport layer
- 🧭 Built-in diagnostics and peer bootstrap management
- 🎨 Modern in-game UI powered by owo-lib
- 🧩 Multi-version Fabric support for recent Minecraft releases
About MOSS
This mod is built on top of MOSS, an embeddable peer-to-peer mesh networking core written in Go and exported through CGO as a native shared library.
MossyMod integrates this networking layer directly into Minecraft to explore decentralized multiplayer architecture and mesh-based world discovery.
Current State
MossyMod is currently considered experimental.
World discovery, diagnostics, and peer management are stable enough for testing and development use, while full gameplay networking compatibility is still actively being improved.
Releases should currently be treated as testing builds unless explicitly marked otherwise.
Included Runtime
The mod automatically bundles required native libraries during the build process, including:
libmossowo-libjnajna-platform
Platform-specific native binaries are downloaded from the latest official MOSS releases and packaged directly into the mod jar.
Requirements
- Minecraft (supported Fabric versions)
- Fabric Loader
- Java 21+
Disclaimer
MossyMod is an ongoing networking experiment focused on decentralized multiplayer infrastructure for Minecraft. Expect bugs, incomplete compatibility, and rapid iteration between releases.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as mossy-1.0.0+1.21.11.jar — drop this file into the mods folder
- Download size: 21.8 MB
- Download link checked 11 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
