Moonlight Lib

Moonlight Lib

dynamic data pack and registration, villager activities, custom map marker and a lot more

by
38.0M Downloads
fabricforgeneoforgelibrary
Rent Server with this Mod

About this Mod

Features of this library are:

  • Dynamic resource pack utilities
    A set of utilities that allow creating dynamic runtime resource packs and datapacks. Also easily allows respriting and retexturing existing textures, specifically useful to add new wood based blocks.

  • Dynamic block set registration
    Allows mods to specify a block set (which can be for example a wood type). The mod then will scan all registered blocks and fill the block set up only to then allow mods to register blocks that depend on it.

This can't be easily done using traditional methods since the wood set itself depends on the registered blocks so registration must happen at a very specific time. This utility makes that task possible and easy to do. Note that it is still a form of dynamic registration which might have some drawbacks.

In a nutshell you have dynamic wood type support for your blocks. The wood set type already comes built-in.

  • Custom map markers: 
    A complete system that allows to easily implement and add map decoration and map markers as well as control every aspect of them like rendering. Also allows storing simple data inside maps data offering a couple of hooks to use it too like on item tooltip.
    This system also offers a simple Data Driven implementation meaning you can easily register new markers with datapacks!

  • Dynamic Villager AI
    A helper system to easily and dynamically add tasks and modify villager schedules in a compatible way without overriding the whole existing AI. Also allows to properly add memory types

  • Custom first and third person animations:
    Allows modders to implement a simple interface in their items to allow it to have custom third and first person animations (like crossbows). 
    Includes simple and easy to use interfaces that can let you control first person and third person animations as well as a callback for rendering the item itself (similar to spyglass) directly in your item class

  • Grindstone achievement triggers:
    The mod adds a custom trigger that gets called when an item is passed through a grindstone that you can call in your mods advancements jsons

  • Soft fluid system:
    An entirely Data Driven custom virtual fluid system that goes on top of forge one and is designed to fit better in vanilla minecraft and having as main feature the ability to have multiple fluid containers items like bottles, bowls and buckets, as well as providing support for stews and drinks that can be consumed directly from a fluid tank. As opposed to the forge fluid system it has a base unit of 1 minecraft bottle (250 forge mb). The system also automatically generates all the needed fluids for already registered forge fluids and allows the user to override them or add to them easily. Fluids are virtual so they can only exist in modded container specifically for them

-Dispenser utilities:
Some code that allows to easily register dispenser behaviors without overriding already existing ones. Also comes with builtin spawn egg and block placement behaviors

Available Versions

moonlight-1.21.1-3.4.1-neoforgerelease
MC 1.21.1neoforge
August 19, 2026
moonlight-1.21.1-3.4.1-fabricrelease
MC 1.21.1fabric
August 19, 2026
moonlight-1.21.1-3.4.0-neoforgerelease
MC 1.21.1neoforge
August 18, 2026
moonlight-1.21.1-3.4.0-fabricrelease
MC 1.21.1fabric
August 18, 2026
moonlight-1.21.1-3.3.5-neoforgerelease
MC 1.21.1neoforge
August 18, 2026

How to Install Moonlight Lib on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Moonlight Lib". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.1, 1.21, 1.20.4 (+11 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Moonlight Lib server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Moonlight Lib compatible with fabric and forge and neoforge?

Moonlight Lib officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.21, 1.20.4. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Moonlight Lib – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Moonlight Lib consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Moonlight Lib with just one click on your server.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-LGPL-with-additional-dependency-clause
Server-side
Required

Supported Versions

1.21.11.211.20.41.20.11.201.19.41.19.31.19.21.19.11.19+4 more