# jMonkeyEngine/jmonkeyengine

A complete 3-D game development suite written in Java.

Repository: https://github.com/jMonkeyEngine/jmonkeyengine
Canonical: https://ross.abutalabs.com/products/jmonkeyengine
Homepage: http://jmonkeyengine.org
Language: Java
License: BSD-3-Clause
License Family: permissive
Topics: jmonkeyengine3, jmonkeyengine, java, hacktoberfest, jme3, game-engine-3d
Last push: 2026-08-22T22:37:33+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 34, longevity 100
- inputs: {"age_days": 4549, "days_push": 11, "days_rel": 225, "gap_med": 191, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4294, forks 1177 (observed 2026-08-28T04:08:41.482506+00:00)

## What it is
jMonkeyEngine is an open-source, code-first 3D game engine written in Java for cross-platform game development. It includes rendering, physics, and tooling via a NetBeans-derived SDK and is used by commercial studios and CS courses.

## Use cases
- build a 3D game in Java
- cross-platform game engine for JVM developers
- create Android games with Java
- learn 3D game programming
- prototype 3D simulations and visualizations
- make a Steam game with an open-source engine

## When to choose
- you want a code-first Java game engine with full engine control
- you need cross-platform desktop and Android 3D game development on the JVM
- you prefer a permissive BSD license and active community

## When to avoid
- you need a visual editor-first workflow like Unity or Godot
- your team does not work in Java or on the JVM
- you need AAA-scale console tooling and asset pipelines

## Facets
- artifact type: framework
- maturity: active
- function: game-engine, graphics, simulation
- domain: graphics, cross-platform
- platform: cross-platform, jvm
- tags: 3d-graphics, opengl, java-game-development, scene-graph, pbr-rendering, gltf, game-development, android, desktop

## Member repositories
- jMonkeyEngine/jmonkeyengine (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:41.482506+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:52.913943+00:00, confidence not recorded.
  - readme: https://github.com/jMonkeyEngine/jmonkeyengine (fetched 2026-08-28T04:08:41.482506+00:00, sha 180de885021f)
  - homepage: http://jmonkeyengine.org (fetched 2026-08-29T09:11:05.924325+00:00, sha 4afe52415031)
  - site_page: https://wiki.jmonkeyengine.org (fetched 2026-08-29T09:11:05.927357+00:00, sha 1f2e14090484)
- Data as of 2026-08-30T08:39:29.467469+00:00.