I would suggest that you try something different. Do a little tutorial game in the Godot engine and learn all the things that you would need to implement yourself if you wouldn’t have the Godot engine doing the heavy lifting for you. This might help you to get a feeling for the scope of your endeavor. I think it’s hard enough to build a game where you don’t have to implement sprite movement, update ticks, physics, collision detection, etc yourself.

If you want to do it anyway because it’s awesome, there’s a running joke that there are like 50 game engines currently being developed in Rust. Go all in!