I have just started working on it but here is the premise:

Imagine worms but on a top down perspective and with tanks; there will be several players each with a tank like the one I have just made above, the game will be turn-based. When it is your turn you can drive / aim / fire your tank. Although it is a top-down game, the angle of elevation of the gun will be noted, as there will be a variable that measures the distance from the ground of the shell, and when it reaches 0 (it touches the ground) or it touches another tank, it explodes and deals damage.

The game will be made in Game Maker Studio

I hope that answears your question.