Kotlin for Forge

⭐ ⭐ (865 endorsements) 📥 47.3M downloads 📌 v5.12.0 📅 2/3/2021
🟡 Updated this year

By thedarkcolour · forge

⬇ Download Mod Source: Modrinth ↗ 📅 Updated: 6/28/2026 📅 Created: 2/3/2021
⚠️ Install Order · 2 steps
1🛠️ Forge — Minecraft Forge (mod loader) Download ↗
2🛠️ Fabric — Fabric Loader Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 0.0% endorsement rate
  • 🏆 #1 of 246 forge mods in this game by downloads

📋 About This Mod

Used to make mods with the Kotlin programming language. Works by shading the Kotlin libraries, providing KotlinLanguageProvider to load @Mod object declarations, providing AutoKotlinEventBusSubscriber to load @EventBusSubscriber declarations, and providing useful utility functions and constants.

As of Kotlin for Forge 1. 8. 0, this provides (https://github.com/JetBrains/kotlin), (https://github.com/Kotlin/kotlinx.coroutines), (https://github.com/Kotlin/kotlinx.serialization), and (https://github.com/JetBrains/java-annotations).

If you're not a mod developer, this is a dependency mod.

Unlike Kottle, this library (as of 1. 2. 0) provides its own implementation of IEventBus that supports IEventBus#addListener and IEventBus#addGenericListener with function references.

Information for how to implement can be found (https://github.com/thedarkcolour/KotlinForForge/blob/master/README.md). You do not have to use the language loader or any of the features Kotlin for Forge provides, you can just use it for the bundled Kotlin libraries.

If you'd like to ask for help or suggest something, feel free to do so on the (https://discord.gg/tmVmZtx).

🤖 AI-enhanced — based on mod data

📊 Mod Details

Game
Minecraft Mods
Author
thedarkcolour
Version
5.12.0
Downloads
47,293,793
Endorsements
865
Category
forge
Created
2/3/2021
Updated
6/28/2026
Game Versions
1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3
Tags
library

🔗 Required By 5 Mods

These mods list this mod as a dependency.

🔧 How to Install Minecraft Mods Mods

Download from Modrinth. Use Prism Launcher or drop into your mods folder.

📖 Full step-by-step install guide for Minecraft Mods →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Minecraft Mods commands, item IDs, and more.

❓ Frequently Asked Questions

Which Minecraft Mods versions does Kotlin for Forge support?

The author lists 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4. Other versions may work but are untested by the author.

What is the latest version of Kotlin for Forge?

Version 5.12.0, published 2026-06-28 with 47.3M downloads recorded at the source.

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