rigid-bodies topic
planck.js
2D JavaScript Physics Engine
matter-js
a 2D rigid body physics engine for the web ▲● ■
PositionBasedDynamics
PositionBasedDynamics is a library for the physically-based simulation of rigid bodies, deformable solids and fluids.
Position-Based-Dynamics
Position based dynamics in Unity
nphysics
2 and 3-dimensional rigid body physics engine for Rust.
Libbulletjme
A JNI interface to Bullet Physics and V-HACD
Minie
Integrate Bullet Physics and V-HACD into jMonkeyEngine projects (code has New BSD license)
physics-simulation
Introduction to state-of-the-art simulation methods for rigid bodies, deformable solids and fluids in the area of visual computing
physics_playground
Improved version of real-time physics engine that couples FEM-based deformables and rigid body dynamics
QuarkPhysics
A 2D Soft Body and Rigid Body Physics Engine.