# NVIDIAGameWorks/PhysX

NVIDIA PhysX SDK

Repository: https://github.com/NVIDIAGameWorks/PhysX
Canonical: https://ross.abutalabs.com/products/nvidiagameworks-physx
Language: C++
License: NOASSERTION
License Family: other
Last push: 2023-09-05T08:32:01+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2828, "days_push": 1093, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 3587, forks 849 (observed 2026-08-28T04:08:11.126489+00:00)

## What it is
NVIDIA PhysX SDK 4.1, a scalable multi-platform real-time physics engine for rigid body dynamics and collision detection, used in game engines like Unreal and Unity. This legacy repository is superseded by PhysX 5 under NVIDIA-Omniverse.

## Use cases
- add realistic physics simulation to a game
- rigid body dynamics and collision detection engine
- physics middleware for Unreal or Unity projects
- simulate cloth, particles, and joints in real time
- cross-platform physics SDK for mobile and desktop

## When to choose
- maintaining a legacy game or engine already using PhysX 4.x
- you need a battle-tested, multi-platform real-time physics engine
- your engine already integrates PhysX and you need source access

## When to avoid
- starting a new project - use PhysX 5 instead
- you need an actively developed physics engine
- you need a permissively licensed library - the license is custom NVIDIA

## Facets
- artifact type: library
- maturity: maintenance
- function: simulation, game-engine, graphics
- domain: simulation, graphics
- platform: windows, cpp, cross-platform
- tags: physics-engine, rigid-body-dynamics, gpu-accelerated, collision-detection, legacy, game-development, linux, macos, android

## Member repositories
- NVIDIAGameWorks/PhysX (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.126489+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 2026-08-29T18:33:53.795750+00:00, confidence not recorded.
  - readme: https://github.com/NVIDIAGameWorks/PhysX (fetched 2026-08-28T04:08:11.126489+00:00, sha 86644eb32e66)
- Data as of 2026-08-30T08:39:29.467469+00:00.