First of all, what matters is what you achieve with your shit. If you're comfortable with godot, then go with godot I'm not going to try to convert you or anything. Now it goes without saying that you have to pick the right tool for the right task.... Now, to answer your question: For a fuckton of technical reasons, starting with the server side part of the game, performances, the godot scripting language with its occult surprise bugs and shortcomings, the godot interface itself, the integration problems you inevitably run into once you do anything outside of godot, the tool chain breaking for god knows why every now and then https://github.com/godotengine/godot/issues/38268 In a nutshell, control, stability, and freedom issues that are typical of game engines Everything isn't rosy to begin with when everything runs correctly (scrolling and animations for your experiment for instance, aren't 100% smooth and you don't know why because.... Godot does things on its own in your back), but the real shit starts the moment you experiment outside of godot's "building blocks" logic, that's when unforeseen consequences tend to blow at your face