I’ve been searching in many places on the internet, but I still don’t understand how I can learn about Perlin Noise or how to apply it in GameMaker.

I would really appreciate it if someone could help me with this. I’m not looking for video tutorials, but rather an article or a blog that can explain in a simple way how I can learn and understand Perlin Noise.

I’ve been wanting to learn Perlin Noise for procedural generation also but it seems too complicated for me.

Check out this article: https://blog.pkh.me/p/42-sharing-everything-i-could-understand-about-gradient-noise.html.

It uses GLSL for code snippets. Do not be alarmed if you don’t understand the code itself. As long as you understand the algorithm you should be able to implement it in Game Maker’s language. You also do not need to read all the way down; feel free to stop the moment you’re satisfied with your noise implementation.