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jMonkeyEngine

by jMonkeyEngine

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jMonkeyEngine's own site

What jMonkeyEngine is

jMonkeyEngine is a free, open-source Java game engine for developers building games for desktop and mobile systems. It targets Windows, macOS, Linux, Android, and iOS, and lists Java 11 through Java 21, Gradle builds, JVM tooling, and use of Java libraries. Rendering options include a GLES 3.0 backend and direct OpenGL support from versions 3.2 through 4.5. Its multiplayer foundations include TCP, UDP, RPC, and synchronization patterns. Physics support covers rigid-body, soft-body, and vehicle simulation through Bullet, Box2D, or Jolt Physics integration. Listed graphics capabilities include PBR, custom materials and shaders, bloom, FXAA, SSAO, and tone mapping. A glTF workflow is intended to transfer materials, lighting choices, and scene setup from Blender. Setup choices include an initializer, a NetBeans-based SDK, or using the engine directly as a Java library. The engine uses the BSD 3-Clause License, with no fees, royalties, splash-screen requirement, or requirement to mention it in a game. The community-built project describes more than 21 years of development. SDKs and editor integrations are maintained separately and may lag engine features.

Who it suits

It suits Java developers building games for desktop and mobile targets who want networking, physics, and graphics capabilities in an open-source engine. Teams choosing an SDK or editor integration should account for the possibility that it may not track the latest engine features.

What it does well

  • Targets five desktop and mobile operating systems
  • Supports Java 11 through Java 21
  • Includes TCP, UDP, RPC, and synchronization foundations
  • Offers several physics integrations and rendering features
  • BSD 3-Clause license has no runtime fees

What to know first

  • SDKs and editor integrations may lag engine features
  • Development is centered on Java

Plans

PlanBilled and limitsPrice
jMonkeyEngineBSD 3-Clause licensed · no runtime fees or splash-screen requirementsFree

As jmonkeyengine.org lists them, read 11 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit the jMonkeyEngine website.
  2. Choose the initializer, the NetBeans-based SDK or direct use as a Java library.
  3. For the initializer, create a Gradle project.
  4. Open the project in an editor or IDE that supports Gradle, such as Visual Studio Code, IntelliJ IDEA or Eclipse.
  5. Use the community hub, Discord, email or GitHub issues for support.

Verdict

jMonkeyEngine offers a broad set of game-development capabilities across desktop and mobile targets under a permissive license. Its separately maintained SDKs and editor integrations may not immediately reflect the latest engine features.

Questions

How much does jMonkeyEngine cost?

The listed plan is free. The maker says the BSD 3-Clause licensed engine has no fees or royalties.

Which platforms can games target?

The engine lists Windows, macOS, Linux, Android and iOS as target platforms.

Is jMonkeyEngine open source?

Yes. The engine uses the BSD 3-Clause License.

Which programming language does it use?

Java is its listed scripting language. The site lists Java 11 through Java 21, Gradle builds and JVM tooling.

How can I get started?

The quick start offers an initializer, a NetBeans-based SDK or using the engine directly as a Java library.

Facts from jMonkeyEngine's own pages

Assets
The site describes a glTF import workflow intended to transfer materials, lighting choices, and scene setup from Blender predictably. · jmonkeyengine.org, 11 Oct 2026
Founded
2004 · jmonkeyengine.org, 28 Sept 2026
Free plan
Yes · jmonkeyengine.org, 21 Sept 2026
Graphics
Listed graphics features include PBR, custom materials and shaders, bloom, FXAA, SSAO, and tone mapping. · jmonkeyengine.org, 11 Oct 2026
IDE support
The initializer creates a Gradle project usable with editors or IDEs that support Gradle, and the page names Visual Studio Code, IntelliJ IDEA, and Eclipse as examples. · jmonkeyengine.org, 11 Oct 2026
Java and builds
The site lists Java 11 through Java 21, Gradle builds, JVM tooling, and direct use of Java libraries. · jmonkeyengine.org, 11 Oct 2026
License
The engine uses the BSD 3-Clause License and the maker says it has no fees, royalties, splash-screen requirement, or requirement to mention the engine in a game. · jmonkeyengine.org, 11 Oct 2026
Mobile export
Yes · jmonkeyengine.org, 21 Sept 2026
Multiplayer tools
Yes · jmonkeyengine.org, 21 Sept 2026
Networking
Its multiplayer foundations include TCP, UDP, RPC, and synchronization patterns. · jmonkeyengine.org, 11 Oct 2026
Physics
The engine supports rigid-body, soft-body, and vehicle simulation with Bullet, Box2D, or Jolt Physics integration. · jmonkeyengine.org, 11 Oct 2026
Project maturity
The homepage describes the project as open source and community built, with more than 21 years of development. · jmonkeyengine.org, 11 Oct 2026
Purpose
jMonkeyEngine describes itself as a code-first Java game engine for developers. · jmonkeyengine.org, 11 Oct 2026
Rendering
It offers a GLES 3.0 backend and direct OpenGL support from versions 3.2 through 4.5. · jmonkeyengine.org, 11 Oct 2026
Scripting languages
Java · jmonkeyengine.org, 21 Sept 2026
SDK limitation
The maker notes that SDKs and editor integrations are maintained separately and may not immediately track the latest engine features. · jmonkeyengine.org, 11 Oct 2026
Setup options
The quick start offers an initializer, a NetBeans-based SDK, or a do-it-yourself setup using the engine as a Java library. · jmonkeyengine.org, 11 Oct 2026
Source code model
open_source · jmonkeyengine.org, 21 Sept 2026
Support
The maker directs support questions to its community hub and also lists Discord, email, and GitHub issues as contact channels. · jmonkeyengine.org, 11 Oct 2026
Target platforms
Windows,macOS,Linux,Android,iOS · jmonkeyengine.org, 21 Sept 2026
Targets
The engine says Java games can target Windows, macOS, Linux, Android, and iOS. · jmonkeyengine.org, 11 Oct 2026

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