Installing Forge for
Minecraft Modding 1.9

Welcome to the setup for Modding with Java: Custom Weapons in Minecraft for Windows. In this setup, we’ll walk you through all the downloads, installations, and configurations that you’ll need before you can create modified weapons in Minecraft. Below each video, we’ll include the same step by step instructions found in the videos. That’s also where you’ll find all of the download links that you’ll need throughout the setup.

1. Installing Java

Before we can build our mod in Minecraft, we’ll need to download our Java Development Kit. JDK 8 contains all the libraries and programing tools that we’ll need to get started. For detailed download instructions for your machine, click on the Windows or Mac button below.

  1. Download the Java SE Development Kit on the Oracle website by clicking this link.
  2. You’ll need to accept the License Agreement before you can download anything.
  3. In order to successfully set up your modding workspace on Windows, you’ll need to know whether your system is using a 32-bit operating system or 64-bit operating system. To find out, click on the start menu in the bottom left corner of your screen, or hit the windows key on your keyboard. Without clicking anywhere else, type “system” and locate the system application from among the results of your search. Once you’ve located system, click on it. Here, you’ll be given a wide range of system specs. The one we’re looking for is “System type:” If yours is listed as a 64-bit system, write that down. At various points in the setup process, you’ll need to download 64-bit variants, sometimes listed as x64. If your system type is listed as 32-bit, you’ll want to write that down as well. That let’s us know that you’ll download 32-bit variants, sometimes listed as x86. Click the download link that relates to your computer operating system (Windows).
  4. The download will begin immediately and should only take a few minutes.
  5. Once the download is finished, open it up to begin the installation.
  6. Follow the installation instructions to install JDK 8.
  7. You now have Java installed! Now it’s time to download our IDE.
  1. Download the Java SE Development Kit on the Oracle website by clicking this link.
  2. You’ll need to accept the License Agreement before you can download anything.
  3. Click the download link that relates to your computer operating system (Mac OS X).
  4. The download will begin immediately and should only take a few minutes.
  5. Once the download is finished, open it up to begin the installation.
  6. Follow the installation instructions to install JDK 8.
  7. You now have Java installed! Now it’s time to download our IDE.

2. Installing the Eclipse IDE

Now that we have Java downloaded, we’ll need to install our Integrated Development Environment (IDE for short). You can think of an IDE as a crafting table where we’ll compile, create, and debug code for our mod. The IDE that we’ll be using is Eclipse. Follow the instructions for your operating system provided below. Since the file will be zipped, be sure to follow the instructions on how to extract it.

  1. Visit the Eclipse Download Page to download the latest version of Eclipse for Windows!
  2. On the download page, you’ll need to select the appropriate download link for your system. Remember that number you wrote down? Here’s where you’ll use it. Click on Windows 64-bit or Windows 32-bit, depending on your operating system.
  3. Once you’ve selected your operating system from the links provided, click on the orange "Download" button to begin downloading eclipse.
  4. When the download is complete, open it by locating and clicking on the download in the bottom left corner of your browser.
  5. Click extract all, then locate and select your Desktop as your destination folder. Click extract, and your Eclipse Folder will unzip to your desktop.
  6. Open the Eclipse Folder from your desktop and double click on Eclipse Icon to open it.
  7. You now have Eclipse installed.
  1. Visit the Eclipse Download Page to download the latest version of Eclipse for Mac!
  2. Once you’ve selected your operating system from the links provided, click on the orange "Download" button to begin downloading eclipse.
  3. When the download is complete, open it by locating and clicking on the download in the bottom left corner of your browser.
  4. You now have Eclipse installed.

3. Downloading Minecraft Forge

Next, we’ll need to set up Forge. Forge is an API (Application Programming Interface) for modding that will make building our mod easier. Forge is also useful for running multiple mods at once. It’s important to note that even if you’ve used Forge before, you’ll still need to follow the Forge install instructions. Whether you’re a modding savant or a modder-in-training, you’ll still need to setup the Mod Development Kit (MDK) included in the downloads which contain all of the files that you’ll need for your project.

Minecraft Forge 1.9

  1. Follow the link to the download page.
  2. In the upper right corner, Click on the download button (the downward pointing arrow).
  3. Your download should appear at the bottom of your window. Once the download completes, click on it to open it.
  4. Click extract all, then locate and select your Desktop as your destination folder. Click extract, and your TechRocketModding folder will unzip to your desktop.
  1. Follow the link to the download page.
  2. In the upper right corner, Click on the download button (the downward pointing arrow).
  3. Your download should appear at the bottom of your window. Once the download completes, click on it to open it.

4. Installing Minecraft Forge

In the last step, we downloaded and unzipped our Forge project files. Now, we’re ready to install and configure them. The install would normally be a many-step process, but we’ve simplified all of those steps into a Gradle file. Gradles automate complicated Java builds into one easy to use package. Since we’ve also included a Gradle wrapper, you don’t even have to install anything to run the Gradle file. Running the gradle wrapper should download and install everything Forge will need to get started.

  1. Open the TechRocketModding folder on your desktop.
  2. To begin the Forge installation process, Double click the
    gradlew-setup-eclipse-windows
    file. This will launch a gradle wrapper which will generate all the necessary project files for our mod.
  3. The install may take several minutes to complete. Once it’s done, you’ll see the words "build successful" at the bottom of the window. If your install is taking a while, you can hop on over to the Tech Rocket Arcade while you wait.
  1. Open the TechRocketModding folder on your desktop.
  2. To begin the Forge installation process, Double click the
    gradlew-setup-eclipse-mac.command
    file. This will launch a Gradle wrapper which will generate all the necessary project files for our mod.
  3. The install may take several minutes to complete. Once it’s done, you’ll see the words "build successful" at the bottom of the window. If your install is taking a while, you can hop on over to the Tech Rocket Arcade while you wait.

5. Setting up the Eclipse Workspace

We installed Forge and Eclipse, and now we’re almost ready to begin modding. We still need to setup the Eclipse workspace. Remember those files we generated in the last step? We need to point the Eclipse workspace to those files so we can begin our modding adventures.

  1. Open the Eclipse folder located on your desktop
  2. Click on the Eclipse icon to launch it.
  3. Navigate to the inside of the ForgeModding Folder.
  4. Once open, you’ll want to change your workspace to include all the Forge files that you unzipped. Click browse, then open the TechRocketModding folder on your desktop.
  5. Once you’re inside your TechRocketModding folder, there should be an eclipse folder inside. Select it, and click okay in the Workspace Directory prompt.
  6. Click “OK” in the Workspace Launcher prompt.
  1. Open your applications folder.
  2. Click on the Eclipse icon to launch it.
  3. Navigate to the inside of the ForgeModding Folder.
  4. Once open, you’ll want to change your workspace to include all the Forge files that you unzipped. Click browse, then open the TechRocketModding folder in your downloads.
  5. Once you’re inside your TechRocketModding folder, there should be an eclipse folder inside. Select it, and click open in the Workspace Directory prompt.
  6. Click “OK” in the Workspace Launcher prompt.