Rapier
2D and 3D physics engines focused on performance. observed · 2026-08-28
Health v2 · maintenance only
76/100
- Activity 98
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2199
- days_rel: n/a
- days_push: 17
- n_releases_24m: 0
Adoption not part of the score
5683 stars · 382 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Rapier is a set of high-performance 2D and 3D physics engines written in Rust, providing rigid-body dynamics, joint constraints, collision detection, and scene queries. It supports SIMD and multithreaded parallelism, cross-platform determinism, and runs natively or in the browser via WebAssembly with official JavaScript and Python bindings.
Use cases
- add real-time physics to a Rust game
- simulate ragdolls, vehicles, or robots with joint constraints
- run physics simulations in the browser via WebAssembly
- ray-casting and sweep-test scene queries
- deterministic cross-platform physics for replays or lockstep networking
- physics simulation for robotics or animation
When to choose
- you need a fast, open-source physics engine in Rust
- you want official WebAssembly/JavaScript support for web games
- you need cross-platform deterministic physics
- you use Bevy and want the bevy_rapier integration
When to avoid
- you need a full game engine rather than a physics library
- your project is in a language other than Rust, JavaScript, or Python
- you need soft-body or fluid simulation out of the box
Facets
library · maturity stable
simulation game-engine graphics simulation robotics graphics rust wasm cross-platform browser python physics-engine rigid-body-dynamics collision-detection simd wasm bevy-integration deterministic-simulation game-development
3 sources
- readme: https://github.com/dimforge/rapier · fetched 2026-08-28 · 7a26f4d6bc8b
- homepage: https://rapier.rs · fetched 2026-08-29 · 922108b5e630
- site_page: https://rapier.rs/docs · fetched 2026-08-29 · 90be3a901d16
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| dimforge/rapier | main | 76 |
| dimforge/bevy_rapier | plugin | 75 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem