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How to install "Hammer"

mc26.1.2 beta! - A lightweight, open-source performance modpack for NeoForge

Author

devin

Downloads

32.6K

Last Updated

Apr 26, 2026

License

MIT

Mod Loaders

Forge NeoForge

Minecraft Versions

26.1.2 1.21.11 1.20.6 1.19.4 1.18.2
lightweight multiplayer optimization

Quick Install ID

#hammer

Install Hammer in GDLauncher

Hammer runs on Forge, NeoForge. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.

Install on Forge

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the Forge loader and a Minecraft version that Hammer supports (26.1.2, 1.21.11, 1.20.6 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #hammer, find Hammer in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

Install on NeoForge

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the NeoForge loader and a Minecraft version that Hammer supports (26.1.2, 1.21.11, 1.20.6 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #hammer, find Hammer in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

Before you install

Make sure your Minecraft version matches what Hammer supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. Hammer 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 Hammer free?

Yes. Hammer is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does Hammer support?

Hammer 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 Hammer require Forge or Fabric?

Hammer 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 Hammer?

Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #hammer. GDLauncher handles dependencies and the right Minecraft version automatically.

Who made Hammer?

Hammer is made by devin. The full project lives on Modrinth (https://modrinth.com/modpack/hammer).

Need help?

Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.

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