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FOAM is another physics engine created by Drew Cummins. His objective when creating this engine was to bridge the gap of a well documented, well structured physics engine which comes with comprehensive resources and tutorials.

The engine comes with API documentation and examples. New examples and tutorials should appear on his homepage.

Besides of the engine home you can download the files from http://code.google.com/p/foam-as3/

The engine is AS3 only.