diff --git a/readme.md b/readme.md
index 39024ea..1e9658d 100644
--- a/readme.md
+++ b/readme.md
@@ -197,6 +197,7 @@ Creative coding is a different discipline than programming systems. The goal is
 - [Zdog](https://zzz.dog/) - A pseudo-3D engine for canvas & SVG
 - [Oimo.js](https://github.com/lo-th/Oimo.js/) - Lightweight 3d physics engine for javascript
 - [Ammo.js](https://github.com/kripken/ammo.js/) - Direct port of the Bullet physics engine to JavaScript using Emscripten
+- [Theatre.js](https://github.com/ariaminaei/theatre) - Motion design library with visual tools
 
 ### Projection Mapping • VJing