IP download
http://interactivephysics.design-simulation.com/IP/demo.php
MIT simulator
http://www.youtube.com/watch?v=NZNTgglPbUA
Half-Life 2 mod
http://www.youtube.com/watch?v=eaCyogfRFvc
more mod
info
http://gmwiki.garry.tv/index.php/Main_Page
Truck
dismount and more