# UPBGE/upbge

UPBGE, the best integrated game engine in Blender

Repository: https://github.com/UPBGE/upbge
Canonical: https://ross.abutalabs.com/products/upbge
Homepage: https://upbge.org
Language: C++
License: NOASSERTION
License Family: other
Topics: blender-game-engine, bge, blender, game-engine-development, game-development
Last push: 2026-08-26T04:15:12+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 64, longevity 100
- inputs: {"age_days": 3935, "days_push": 7, "days_rel": 241, "gap_med": 6.0, "n_releases_24m": 25}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1803, forks 229 (observed 2026-08-28T04:05:38.113209+00:00)

## What it is
UPBGE is a fork of Blender that continues development of the Blender Game Engine after its removal from official Blender. It cleans up and extends the BGE codebase while regularly merging upstream Blender patches.

## Use cases
- build 3D games inside Blender
- create interactive 3D prototypes without coding a full engine
- develop real-time simulations using Blender assets
- continue projects that relied on the Blender Game Engine
- make educational interactive 3D content

## When to choose
- you want a fully integrated game engine within Blender
- you have existing BGE projects to maintain
- you prefer visual logic-based game development over code-heavy engines

## When to avoid
- you need a production-grade engine with large ecosystem support like Unity or Unreal
- you only need Blender for modeling and rendering
- you require guaranteed long-term commercial support

## Facets
- artifact type: application
- maturity: active
- function: game-engine, graphics, simulation
- domain: graphics, cross-platform
- platform: windows, cpp
- tags: blender, game-engine, 3d, fork, game-development, linux, macos

## Member repositories
- UPBGE/upbge (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:38.113209+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 2026-08-30T03:21:51.696782+00:00, confidence not recorded.
  - readme: https://github.com/UPBGE/upbge (fetched 2026-08-28T04:05:38.113209+00:00, sha 4029bbce588a)
  - homepage: https://upbge.org (fetched 2026-08-29T11:00:42.391161+00:00, sha ac3f618b820e)
- Data as of 2026-08-30T08:39:29.467469+00:00.