Rubikon

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Rubikon mascot used in Sergey Migdalskiy's lecture at GDC 2014.

Rubikon is Valve's custom CPU based^[2] physics engine used in Source 2. It replaces Havok, which is the main provider of physics for Source engine games.

Forks

S&box uses modified version of Rubikon physics engine called "Box3D", which was designed to be constantly updated.^[1]

External links

• Rubikon at GDC 2014 —  Valve's Physics for Game Programmers.
• Document from GDC 2014 — Sergiy Migdalskiy Debugging Techniques.pdf ( Archived version ).

References

References
1. gvarados (@gvarados) (August 3, 2024). "S&box has a new Physics Engine".  X (Twitter).  Retrieved May 13, 2025. 2. Dirk Gregorius (March 10, 2015). "Rubikon : Valve's physics engine for Source 2". Real-Time Physics Simulation Forum.  Retrieved May 13, 2025.