# FlaxEngine/FlaxEngine

Flax Engine – multi-platform 3D game engine

Repository: https://github.com/FlaxEngine/FlaxEngine
Canonical: https://ross.abutalabs.com/products/flaxengine
Homepage: https://flaxengine.com
Language: C++
License: NOASSERTION
License Family: other
Topics: flax, flaxengine, engine, game-engine, gamedev, multi-platform, game-development, c-sharp, cpp, flax-engine
Last push: 2026-08-18T10:11:27+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 52, longevity 100
- inputs: {"age_days": 2093, "days_push": 15, "days_rel": 107, "gap_med": 195, "n_releases_24m": 4}
- 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 6983, forks 710 (observed 2026-08-28T04:09:51.877386+00:00)

## What it is
Flax Engine is a modern, multi-platform 3D game engine written in C++ and C# with full source code available. It provides an editor, real-time global illumination, visual scripting, and cross-platform deployment for Windows, Linux, macOS, Android, iOS, consoles, and web.

## Use cases
- build a 3D game with C# and C++ scripting
- create a cross-platform game for PC, mobile, and consoles
- make an open-world game with terrain and foliage tools
- develop a multiplayer game with built-in networking
- prototype games quickly with visual scripting
- render realistic scenes with real-time global illumination
- build large worlds with 64-bit coordinate precision

## When to choose
- you want a full-source, modern 3D engine with fast iteration and hot-reloading
- you need C# and C++ scripting in the same engine
- you target many platforms including consoles and web
- you want real-time GI, GPU lightmaps, and VFX tools out of the box
- you are an indie or small-to-large team wanting a lightweight, agile editor

## When to avoid
- you need a fully permissive open-source license (Flax uses a 4% royalty above $250k/quarter and restricts source redistribution)
- you primarily make 2D games
- you require NDA-protected platform support from source (excluded from the public repo)
- your team is deeply invested in another engine's ecosystem or asset store

## Facets
- artifact type: framework
- maturity: active
- function: game-engine, graphics, simulation
- domain: graphics, cross-platform
- platform: windows, cpp, cross-platform
- tags: 3d-engine, c-sharp-scripting, visual-scripting, editor, pbr-rendering, global-illumination, multiplayer, royalty-based-license, game-development, linux, macos, android, ios

## Member repositories
- FlaxEngine/FlaxEngine (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:51.877386+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 2026-08-29T17:41:08.439596+00:00, confidence not recorded.
  - readme: https://github.com/FlaxEngine/FlaxEngine (fetched 2026-08-28T04:09:51.877386+00:00, sha ad08dde5c561)
  - homepage: https://flaxengine.com (fetched 2026-08-29T08:37:04.087648+00:00, sha 13af3c178b5a)
  - site_page: https://flaxengine.com/features (fetched 2026-08-29T08:37:04.097093+00:00, sha 8a95acd9f675)
  - site_page: https://docs.flaxengine.com (fetched 2026-08-29T08:37:04.101893+00:00, sha bf6bb888d7e2)
  - site_page: https://flaxengine.com/faq (fetched 2026-08-29T08:37:04.099304+00:00, sha 3fa544d36408)
- Data as of 2026-08-30T08:39:29.467469+00:00.