Heroes of Mana and Revenant Wings were heavy on the micromanagement of units and combat activities but light-to-nonexistent on other RTS elements such as base building. Robocalypse amps things up in this area, and as such you'll build structures that can produce different kinds of units. You'll also create worker units to collect scrap and energy, the two kinds of currency. (Thankfully, the drones will gather resources automatically.) The controls are of course mainly stylus-driven; you can scroll the screen by dragging, queue up units for production with a couple of building taps, and so on. There's even a handy feature to flip the map from the top screen down to the bottom, quickly drag to a new point on the battlefield, and jump back to the action.