also there's lots of defold public example projects at github:
- https://github.com/defold/defold-examples
- https://github.com/britzl/publicexamples
- https://github.com/JCash/defoldexamples
- https://github.com/andsve
A single good place to start is perhaps the War Battles sample project: https://github.com/defold/defold-examples/tree/master/war-battles