Licensees are given access to most of the C/C++ source-code, giving them the freedom to customize the engine's features, or port it to different platforms although some libraries are only provided in binary format.

[13] These platforms include: Windows, Linux, Xbox Series S/X, Playstation 5, iOS, Nintendo Switch and Android.

In 2023, Havok products were used in twelve[19] of the top twenty best selling video games in the United States.

Havok was also used in the virtual world Second Life, with all physics handled by its online simulator servers, rather than by the users' client computers.

[22] Second Life resident Emilin Nakamori constructed a weight-driven, pendulum-regulated mechanical clock functioning entirely by Havok Physics in March 2019.