Top 20 NuGet physics Packages

Speedy real time physics simulation library.
Box2D.NetStandard is the C# port of C++ Box2D. This package supports .NET Standard 2.1.
A simple library for 2D physics simulations in .NET.
A simple library for working with Box2D physics.
A collections of different calculators and conversions like gravity of beer calculated based on temperature
Yet Another Math Parser (YAMP) Core System with all base types and functions.
This C# library provides units management in different measure system (International System, CGS, Imperial system and US).
This is a .NET Standard version of the Box2DX project, forked from https://github.com/colgreen/box2dx. Box2DX was originally created by Ihar Kalasouski and hosted at http://code.google.com/p/box2dx in order to provide a C# port of the popular physics engine Box2D by Erin Catto.
.NET wrapper for the Bullet physics engine
A .NET library that helps with mathematics and algorithmic work.
Spine is a 2D skeletal animation tool for game development and other animation projects.
Jitter Physics is a fast and lightweight physics engine written in C#.
Bonsai Physics Library containing modules for creating reactive 3D physics simulations.
Physics related type system that models the physical world, including distances, areas, etc. Includes strongly typed operators, so that multiplying two distances results in an area, etc.
The physics library extends YAMP with constants and functions that play an important role in general physics.
The sensors library extends YAMP with functions which can talk to some of the sensors that can be connected to a Windows PC. This library is required by Sumerics and cannot be disabled.
The IO library extends YAMP with functionality to interact with the filesystem.
The Sets library extends YAMP with Sets and set operations.
This fork of jitter physics targets netstandard 1.4
Aether.Physics2D is a 2D collision detection system.