jMonkeyEngine

jMonkeyEngine is a 3-D game engine for adventurous Java developers. It’s open-source, cross-platform, and cutting-edge. v3.8.0 is the latest stable version of the engine.

The engine is used by several commercial game studios and computer-science courses. Here's a taste:

• jME powered games on IndieDB
• Boardtastic 2
• Attack of the Gelatinous Blob
• Mythruna
• PirateHell (on Steam)
• 3089 (on Steam)
• 3079 (on Steam)
• Lightspeed Frontier (on Steam)
• Skullstone
• Spoxel (on Steam)
• Nine Circles of Hell (on Steam)
• Leap
• Jumping Jack Flag
• PapaSpace Flight Simulation
• Cubic Nightmare (on Itch)
• Chatter Games
• Exotic Matter
• Demon Lord (on Google Play)
• Marvelous Marbles (on Steam)
• Boxer (on Google Play)
• Depthris (on Itch)
• Stranded (on Itch)
• The Afflicted Forests (Coming Soon to Steam)
• Star Colony: Beyond Horizons (on Google Play)
• High Impact (on Steam)

Getting Started

Go to https://github.com/jMonkeyEngine/sdk/releases to download the jMonkeyEngine SDK. Read the wiki for the installation guide and tutorials. Join the discussion forum to participate in our community, get your questions answered, and share your projects.

Note: The master branch on GitHub is a development version of the engine and is NOT MEANT TO BE USED IN PRODUCTION.

Technology Stack

• windowed, multi-platform IDE derived from NetBeans
• libraries for GUI, networking, physics, SFX, terrain, importing assets, etc.
• platform-neutral core library for scene graph, animation, rendering, math, etc.
• LWJGL v2/v3 (to access GLFW, OpenAL, OpenGL, and OpenVR) or Android or iOS
• Java Virtual Machine (v11 or higher)

Android applications must use a toolchain that supports Java 11 class files and configure their module's Java source/target compatibility accordingly. The Android examples already target Java 11 and require API 30 or newer. Java 11 bytecode does not make every Java 11 library API available on Android: check Android's Java API support and enable core library desugaring when using supported APIs that are absent from the application's minimum API level. This change does not add uses of newer Java library APIs.

Documentation

Did you miss it? Don't sweat it, here it is again.

Contributing

Read our contribution guide.

License

New BSD (3-clause) License

How to Build the Engine from Source

The engine artifacts require Java 11 or newer at runtime. Building this branch requires JDK 17 or newer to run Gradle; the build uses an Eclipse Temurin JDK 25 toolchain (downloaded automatically when needed) to compile engine code with --release 11. Tests and screenshot-test framework code target Java 17. These build requirements are separate from the engine's Java 11 runtime minimum.

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