Have you been looking for a reliable open-source ActionScript 3.0 Physics Engine? Good news! I came across a list of four popular ActionScript 3.0 Physics Engines provided by Henry Jones. The four engines listed are The Fisix Engine, ActionScript Physics Engine, FOAM, and Box2DFlashAS3.

Each ActionScript 3.0 Physics Engine listed has its pros and cons, but one thing for sure is that the use of Actionscript 3.0 provides an increase in performance versus Actionscript 2.0. Whether your heavy into creating flash games and looking for the believable physics or simply looking for a new thing to get into, this is a great list to keep in mind.