Compare

Side-by-side comparison

Pick up to four tools and compare adoption, momentum and maintenance at a glance. The crown marks the leader in each row.

NVIDIA's open-source real-time physics SDK with GPU acceleration, used in many engines and AAA titles.

The classic 2D physics engine; the v3 rewrite brings large performance and stability gains.

Multithreaded rigid-body engine from Horizon Forbidden West, now built into Godot.

Fast 2D/3D physics engine in Rust with optional determinism and JavaScript/WASM bindings.

Head to head

Metric	PhysX	Box2D	Jolt Physics	Rapier
Stars	4.8k	10.4k	12.2k	6k
Weekly downloads	n/a	n/a	n/a	66.1k
Download growth	n/a	n/a	n/a	+76%
Popularity score	67/100	73/100	75/100	63/100
Forks	684	1.8k	1k	432
Open issues	130	8	14	97
Last commit	1w ago	3w ago	5d ago	1w ago
Latest version	n/a	n/a	n/a	0.36.1Oct 10, 2026
License	BSD-3-Clause	MIT	MIT	Apache-2.0
First released	2022	2015	2021	2020
Signals	Popular	Popular	Trending	Rising
Listed in	Game Development › Physics Engines	Game Development › Physics Engines	Game Development › Physics Engines	Game Development › Physics Engines

Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): PhysX, Box2D, Jolt Physics.

NVIDIA's open-source real-time physics SDK with GPU acceleration, used in many engines and AAA titles.

The classic 2D physics engine; the v3 rewrite brings large performance and stability gains.

Multithreaded rigid-body engine from Horizon Forbidden West, now built into Godot.

Fast 2D/3D physics engine in Rust with optional determinism and JavaScript/WASM bindings.

Metric	PhysX	Box2D	Jolt Physics	Rapier
Stars	4.8k	10.4k	12.2k	6k
Weekly downloads	n/a	n/a	n/a	66.1k
Download growth	n/a	n/a	n/a	+76%
Popularity score	67/100	73/100	75/100	63/100
Forks	684	1.8k	1k	432
Open issues	130	8	14	97
Last commit	1w ago	3w ago	5d ago	1w ago
Latest version	n/a	n/a	n/a	0.36.1Oct 10, 2026
License	BSD-3-Clause	MIT	MIT	Apache-2.0
First released	2022	2015	2021	2020
Signals	Popular	Popular	Trending	Rising
Listed in	Game Development › Physics Engines	Game Development › Physics Engines	Game Development › Physics Engines	Game Development › Physics Engines

Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): PhysX, Box2D, Jolt Physics.