Installation

Install Minecraft, NeoForge, and FoundryEngine to start building bundles.

Prerequisites

Java 25+

FoundryEngine needs Java 25 or later. Download it from Adoptium Temurin.

Check your Java version:

java -version

The version number should start with 25. If the command is not found, install Java and restart your terminal.

NeoForge 26.1.x

FoundryEngine runs on NeoForge 26.1.x for Minecraft 26.1.x.

Using a custom launcher (Prism, MultiMC, ATLauncher, etc.):

1. Create a new instance
2. Pick the right Minecraft version for your NeoForge release
3. Select NeoForge as the mod loader (latest 26.1.x.x version)

Using the official Minecraft launcher:

Follow the NeoForge client installation guide.

Installing FoundryEngine

1. Download the latest FoundryEngine .jar from the releases page
2. Place the .jar into your instance's mods/ folder
3. Launch Minecraft with the NeoForge profile

Verifying installation

When you first launch, FoundryEngine creates a folder inside your Minecraft directory:

.minecraft/
└── FoundryEngine/
    ├── bundles/          # Your bundles go here
    ├── config/           # Per-bundle configuration
    └── .cache/           # Internal cache

If you see this folder, the mod loaded. You can also check the Mods menu — FoundryEngine should appear.

What's next

Now that FoundryEngine is installed:

• Your First Bundle — step-by-step tutorial
• Core Concepts — understand bundles, scripts, events
• Examples — see working code