Real-time physics engines
Open source
* Box2D
* Bullet
* Chipmunk physics engine
* Open Dynamics Engine
* PAL (Physics Abstraction Layer) - A uniform API that supports multiple physics engines
* SOFA (Simulation Open Framework Architecture)
* Tokamak physics engine
Public domain
* Phyz (Dax Phyz) - 2.5D physics simulator/editor.
Closed source/limited free distribution
* Newton Game Dynamics
* PhysX (formerly NovodeX and incorporating Meqon)
* Havok
* Vortex by CMLabs Simulations
* Wild Pockets
Hope to see some then!


