diff --git a/README.md b/README.md
index a6b4f613..d8a74cb7 100644
--- a/README.md
+++ b/README.md
@@ -342,6 +342,7 @@ Please see [CONTRIBUTING](https://github.com/DhanushNehru/Ultimate-Web-Developme
 - [CSS tips and tricks - Kevin Powell](https://www.youtube.com/kepowob)
 - [Introduction to CSS - Web Dev Simplified](https://www.youtube.com/playlist?list=PLZlA0Gpn_vH9D0J0Mtp6lIiD_8046k3si)
 - [A Complete Guide to Flexbox](https://css-tricks.com/snippets/css/a-guide-to-flexbox/)
+- [Flexbox Zombies - Learn flexbox by playing](https://mastery.games/flexboxzombies/)
 
 ## JS Learning Resources
 - [Learn JavaScript - Full Course for Beginners (YouTube - FreeCodeCamp)](https://www.youtube.com/watch?v=PkZNo7MFNFg)