Rackstar

More servers mean more heat. Add fans, then AC, switch each rack between Eco, Turbo and Overdrive and react fast when one starts to cook. Your robot helper Byte collects cash, dusts racks and puts out fires, and he levels up with new skills and hats along the way.

Every new location is a completely different room: the Garage, Basement, Office and Warehouse, then an Arctic Bunker, a Desert Solar Farm, an Undersea Base and finally an Orbital Station. Each has its own layout, music and hazards: blizzards, leaks, meteors and radiation storms.

Take customer contracts, ride live events like viral spikes, heat waves and power outages, collect rare hardware, claim daily rewards and race the Megacorp rival. When you're big enough, Go Public to restart with permanent bonuses and spend research points on a tech tree. A story told through texts from Mom, your friend Jaz and your customers follows you the whole way. Progress saves automatically, and your racks keep earning while you're away.

• Mouse: drag parts from the bottom bar onto a rack or a slot. Click a rack to open it. Drag to rotate the camera, scroll to zoom, right-drag (or Shift+drag) to pan. F opens the Fleet window, H toggles the heat map.
• Touch: drag parts from the bottom bar, tap a rack to open it. Swipe to rotate, pinch to zoom, two-finger drag to pan. Swipe the bottom bar to see every part.