If you'd like, you can follow the tutorial series on my YouTube channel.
If you're looking for the source code of a specific episode, you can find each part by switching branches.
Goes over what to expect from this series, and shows how to set up a basic platformer in Godot to kick things off.
https://www.youtube.com/watch?v=CS5qU7eOwb8
https://github.com/curtjs/multiplayer-arena/tree/part1
Goes over how to add multiplayer to the game. Can be applied to basically any platformer
https://github.com/curtjs/multiplayer-arena/tree/part2
Goes over how to add spawn points, a gun, and synchronizing bullets over the network
https://www.youtube.com/watch?v=EvKteWXcnQU
https://github.com/curtjs/multiplayer-arena/tree/part3
Coming Soon!