Install Kotlin for Forge in GDLauncher
Kotlin for Forge runs on Forge, NeoForge. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.
Install on Forge
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the Forge loader and a Minecraft version that Kotlin for Forge supports (26.1.2, 1.21.11, 1.20.6 are common choices).
- Open the new instance, go to the Addons tab, and click Add Addons.
- Paste the Quick Install ID
#kotlin-for-forge, find Kotlin for Forge in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Install on NeoForge
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the NeoForge loader and a Minecraft version that Kotlin for Forge supports (26.1.2, 1.21.11, 1.20.6 are common choices).
- Open the new instance, go to the Addons tab, and click Add Addons.
- Paste the Quick Install ID
#kotlin-for-forge, find Kotlin for Forge in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Before you install
Make sure your Minecraft version matches what Kotlin for Forge supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. Kotlin for Forge supports multiple loaders (Forge, NeoForge); pick whichever matches your other mods. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.
Frequently Asked Questions
Is Kotlin for Forge free?
Yes. Kotlin for Forge is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.
What Minecraft versions does Kotlin for Forge support?
Kotlin for Forge supports Minecraft 26.1.2, 1.21.11, 1.20.6, 1.19.4, 1.18.2, 1.17.1. GDLauncher will automatically pick a compatible version when you install it.
Does Kotlin for Forge require Forge or Fabric?
Kotlin for Forge supports Forge, NeoForge. Pick the loader that matches your other mods, or let GDLauncher set up a fresh instance for you.
How do I install Kotlin for Forge?
Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #kotlin-for-forge. GDLauncher handles dependencies and the right Minecraft version automatically.
Who made Kotlin for Forge?
Kotlin for Forge is made by thedarkcolour. The full project lives on Modrinth (https://modrinth.com/mod/kotlin-for-forge).
Need help?
Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.