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 * [**C++**: _Game physics series by Allen Chou_](http://allenchou.net/game-physics-series/)
 * [**C++**: _How to Create a Custom Physics Engine_](https://gamedevelopment.tutsplus.com/series/how-to-create-a-custom-physics-engine--gamedev-12715)
 * [**C++**: _3D Physics Engine Tutorial_](https://www.youtube.com/playlist?list=PLEETnX-uPtBXm1KEr_2zQ6K_0hoGH6JJ0) [video]
-* [**JavaScript**: _Build your own basic physics engine in JavaScript_](https://www.graphitedigital.com/blog/build-your-own-basic-physics-engine-in-javascript)
 * [**JavaScript**: _How Physics Engines Work_](http://buildnewgames.com/gamephysics/)
 * [**JavaScript**: _Broad Phase Collision Detection Using Spatial Partitioning_](http://buildnewgames.com/broad-phase-collision-detection/)
 * [**JavaScript**: _Build a simple 2D physics engine for JavaScript games_](https://www.ibm.com/developerworks/library/wa-build2dphysicsengine/index.html)