Chipmunk2D Physics

Chipmunk2D Physics is our high performance, cross-platform, 2D rigid body physics library. Chipmunk is used in countless games and libraries across dozens of platforms.


We maintained the cross-platform, open-source 2D game engine, Cocos2D. Our expertise brought high performance physics to the engine and a new renderer that featured multi-threading, fast culling, streaming vertex buffers, and Metal support.


Our Unity3D clients have ranged from two major Fortune 500 companies to local tech startups. We've done everything from 3D platformers to music education software with plugins for chord recognition.

Galactic Guardians, a Cocos2D rendering tech demo, features screen space distortion, burning debris shaders, single-pass parallax backgrounds, and more. (Youtube, source, iTunes)

Super Fast Soft Shadows brings our great shadow rendering technology to Unity3D. Available on the asset store!

AtPlayMusic iOS apps do audio recognition to evaluate students as they play on flutes, trumpets, and more. We even created guitar chord detection algorithms!

Our latest news:

August 1st, 2013
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We had a great time at GDC last week! We ended up meeting a lot of new and interesting people. It’s always great because we can chat with a lot of people who are and are not using Chipmunk to figure out how we can make it even better. Farewell Chipmunk Physics. Long Live Chipmunk2D! […]


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June 26th, 2019
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Verdant Skies is now at 1.4.0! This huge update has major new features for mod makers and mod enthusiasts. We’ve also reworked romance events for Sasha, Yuki, Rosie, Wyatt and Miles. You’ll now have new flirting options with these characters, and if you’re not hinting at a relationship, they won’t confess their love for you. […]


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