This is the project that I am currently working on. If I had to describe it in terms of other games it'd be "Advance Wars meets Civ 5".
Taking what I have learned from the Multiplayer Prototype and streamlining it, I have created a bare version of this type of game that works. You can play over the internet, you can move units, you can attack units, you can create levels and more.
I am doing all the coding and a few friends of mine are helping out with the art. We keep everything organized on a Trello board and a Discord group DM.
I plan to make this into a complete game, with things like capturing buildings, resources, research and more in the planning.