From Halopedia, the Halo wiki
This article is about a physics engine. For the nuclear weapon, see HAVOK tactical nuclear weapon.
Havok is a proprietary software suite developed by Havok. The software has been used by a large number of projects, both in the video game and movie industries.
Integration into the Halo development
Havok Physics is a physics engine used to provide dynamic simulation to simulate physical interactions realistically, including such features as ragdoll physics or intelligence in massive falling objects. The engine was first utilised in Halo 2 and has remained one of the key component software in the Halo development ever since.
Halo: Combat Evolved is the only Halo title that utilises Bungie's in-house physics engine.