Install Polymer in GDLauncher
Polymer runs on Fabric, Quilt. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.
Install on Fabric
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the Fabric loader and a Minecraft version that Polymer 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
#polymer, find Polymer in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Install on Quilt
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the Quilt loader and a Minecraft version that Polymer 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
#polymer, find Polymer 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 Polymer supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. Polymer supports multiple loaders (Fabric, Quilt); 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 Polymer free?
Yes. Polymer is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.
What Minecraft versions does Polymer support?
Polymer supports Minecraft 26.1.2, 1.21.11, 1.20.6, 1.19.4, 1.18.2. GDLauncher will automatically pick a compatible version when you install it.
Does Polymer require Forge or Fabric?
Polymer supports Fabric, Quilt. Pick the loader that matches your other mods, or let GDLauncher set up a fresh instance for you.
How do I install Polymer?
Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #polymer. GDLauncher handles dependencies and the right Minecraft version automatically.
Who made Polymer?
Polymer is made by Patbox. The full project lives on Modrinth (https://modrinth.com/mod/polymer).
Need help?
Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.