The main thing that fascinates me about Godot is how much functionality comes straight out of the box! Nearly every typical utility function is implemented, you have a ton of specific utility nodes like the VisibilityNotifier or TabContainer, and it’s just really fast to create prototypes and test stuff out. My absolute favorite part is how smooth and robust the UI system is! It takes a little while to get used to, but I love how I can theme certain reusable components and easily hook up functionality to controls.