These are some prototypes and mockups for various Rivet Wars games. They were done with a combination of 3D and 2D art and running in Unity.
I mocked up the underground base in 3D and then did some paintover with some UI elements.
This is a closeup of the underground base where unit production would take place.
A mockup I did of a more top down game played out as a kind of tactics game.
I mocked up this map to show how territory could be taken and contested.
Another mockup with a more spline based smooth border push system.
This is a combination of 3D elements I made and paintovers.
For this Advance Wars style game I made all the elements in 3D but didn't texture them at this early stage.