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Euphoria is a game animation middleware created by NaturalMotion based on Dynamic Motion Synthesis, NaturalMotion's proprietary technology for animating 3D characters on-the-fly "based on a full simulation of the 3D character, including body, muscles and motor nervous system". Instead of using predefined animations, the characters' actions and reactions are synthesized in real-time; they are different every time, even when replaying the same scene. While it is common for current video games to use limp "ragdolls" for animations generated on the fly, Euphoria employed a more complex method to animate the entirety of physically bound objects within the game environment. The engine was to be used in an Indiana Jones game that was later cancelled. According to its web site, Euphoria ran on the Microsoft Windows, OS X, Linux, PlayStation 3, PlayStation 4, Xbox 360, Xbox One, iOS and Android platforms and was compatible with all commercial physics engines.
In February 2007, NaturalMotion and Rockstar Games announced that Euphoria would be used in future Rockstar titles.
In August 2007, NaturalMotion announced Backbreaker, an American football game for next-generation consoles that employs Euphoria to generate tackles in real-time, as opposed to playback animation.
The July 2009 issue of Game Informer confirmed that Max Payne 3 would include Euphoria along with Rockstar's RAGE.
NaturalMotion's iOS title Clumsy Ninja uses Euphoria, and is the first mobile game to do so.
