Jolt Physics
A modern open C++ rigid-body and collision library with threading, characters, vehicles, soft bodies, and determinism options.
Why use it
It fits native projects needing many dynamic objects, memory control, and deep engine integration.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
What to check
Projects maintain bindings and tools; validate determinism, rollback, and extreme cases under real settings.