Hari_Bro dont assume there where be a documentation page on how to make "your" game.. its a reference "book" for you to learns what functions or classes of objects in godot engine do.
You have to ask questions here, for your own growth. You have to think of smart questions to ask before you can learn. otherwise you just waiting for someone to make the thing for you.
Start by:
How to make a game? - Learn to code, learn to make assets (sound, music, drawing, 3D). Find a game engine.
Now that is a broad question. And this will overwhelm you. Thats why you need to narrow down.
How to make my character move in godot? - https://docs.godotengine.org/en/stable/getting_started/first_3d_game/03.player_movement_code.html
And then when you get to the point you dont know what the function does, you just look up what input data this function needs and what data it outputs.. etc etc...
Just do something, fail, and look for solution.
You are living in the best age to do this. You dont need to haul your ass on sundays to library to look for book, to spend hours reading the basics of programming then to make the connections in your head how all these principles need to work together to output something on screen.. no.. you just need to ask the right question to chatgpt and he will guide you almost true.. he will give you good enough examples if you ask it right..
As the god once said: Ask, and you shall receive. If you ask poorly you shall get what you asked for.