I designed a UI that would work for a zombie strategy game on social media like Facebook. The game mechanics would be similar to Rebuild 2 and have new features like multiplayer and capturing other player’s buildings by controlling small teams of units.
I separated the UI in two main windows, the left shows up whenever you click on a building or enemies and the bottom shows up when you click on a team. This allowed a large amount of specific orders that the player could do. For example when you click on an occupied building, it gives you options to ally or trade or if you clicked on the group of zombies, it would change those options to things like fighting them. You can also easily cycle through your set teams with the left and right buttons.