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Luau project artwork

CurseForge · Minecraft mod

Luau

Let other mods compile and run sandboxed Luau scripts

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Luau release should I use?

Updated 2 months ago
beta file 0.1.0
Game version 1.21, 1.20.2, 1.21.8
Loader Fabric, Forge, NeoForge

Luau 0.1.0 targets 1.21, 1.20.2, 1.21.8 with Fabric, Forge, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Luau required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric, Forge, NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Luau 0.1.0 need?

0.1.0. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Luau without breaking your instance.

Built for Luau 0.1.0. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 0.1.0. It targets 1.21, 1.20.2, 1.21.8 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 0.1.0. It opens that exact file at the source.

About this project

What does Luau add?

A library mod that lets other mods compile and run sandboxed Luau scripts. Native Luau libraries are bundled inside the mod JAR, so no native code is downloaded at runtime.

Features

  • Strict type checking and compilation of in-memory Luau source files.
  • Isolated, persistent ScriptInstances with explicit lifecycle management.
  • Controlled source and host modules, including a sandboxed require.
  • Safe conversion between Java values and Luau values.
  • Limits for execution time, interrupt checks, VM memory, and host calls.
  • Source breakpoints, stepping, pause, resume, and termination support.

Third-party notices

This project embeds and distributes the Luau implementation. Luau is distributed under the MIT License and is based on the Lua 5.x implementation, which is also distributed under the MIT License.

Project description from CurseForge.

Pick your setup

Luau by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

66 available setups

Showing the newest 12 of 22 game versions. Older files are in the list below.

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Luau versions and loaders

1 of 1 releases match

Looking for an older file? The official CurseForge project page is in Resources.