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The current Havok logo.

Havok is a middleware software suite developed by the Irish company of the same name, Havok. Its technology is used in several games in the Sonic the Hedgehog series.


The Havok middleware suite is designed primarily for video games, consisting of several programs designated to certain computational tasks related to game development. It includes Havok AI, Havok Cloth, and Havok Physics. Previously offered in the suite were Havok Animation, Havok Behavior, Havok Destruction, Havok Script and Havok Vision Engine, but they have all since been discontinued.

Among all the products the suite provides, Havok Physics is the one most frequently used in Sonic games. It allows for real-time collisions and rigid body dynamics in a 3D space. Its collision detection library is thoroughly optimized, and it provides multiple types of dynamic constraints between rigid bodies such as ragdolls.

Additionally, Havok Animation is used in Super Smash Bros. Brawl and Super Smash Bros. for Wii U.

Sonic games using Havok Physics

Other games using Havok Animation


  • Sonic Unleashed is the only Sonic game to use Havok technology in both HD and non-HD versions.


  1. Nintendo. Mario and Sonic at the Sochi 2016 Olympic Games (Wii U) instruction manual. Retrieved on 27 September 2020. “Havok software is ©Copyright 1999-2012, Inc. (or its Licensors). All Rights Reserved.”

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