Football is real-time strategy, à la Age of Empires. Hear us out. You pass the ball around to look for space and open up the defence. That creates room for your teammates to make runs, who might then be free to receive the ball themselves or may act as a diversion for others in a better position. If it all goes according to plan, you might take a shot and score. For those wearing the opposite colours, the reverse applies. They are constantly looking to plug gaps in defence and tracking various targets. And if it all goes according to plan for them, they win back possession. Then, it starts all over again. This is the simple yet beautiful system that has made football such a popular sport globally. With 20 outfield players, the variations are endless. But if you shrink it down, it's a lot less complex — and far less strategic.