The demos on this page require DirectX 9.0c (March 2008 edition or newer) and Nvidia's PhysX drivers.

This is a demo of ~3k cubes stacked as a wall. WASD moves camera, left mouse button turns camera, SPACE shoots a ball and P pauses the physics simulation (useful for seeing how much physics impacts performance). Software and hardware physics supported. DirectX 8.0 compliant GFX card required. Now also comes with benchmark mode, which times the physics calculations and calculates average fps.
Download v1.02