Hi! I'm new to using the Unity engine so I'm sure I'm missing some obvious documentation somewhere but I'd love some help.

I'm trying to write a script in unity that can create a new version of my Houdini asset with different parameters when I click a button, basically allowing for a procedural generation while the game is running.

I found an older tutorial that did just that but alas it's a few years old and doesn't work with the current version of the engine. Any help or examples would be greatly appreciated!

Unfortunately, this is not possible. Houdini Engine cannot run in real time because of licensing issues. AFAIK, it's because it would need to be licensed for everyone playing your game. Maybe one day!