Grid-based systems are structures that use a network of intersecting lines to create a series of squares or rectangles. This layout helps organize space efficiently, making it easier to navigate and manage. For example, in urban planning, cities like New York utilize a grid-based design to facilitate transportation and zoning. In the world of gaming, grid-based mechanics are often used in strategy games, where players move characters or units across a defined grid. This approach allows for clear movement options and tactical planning, as seen in popular games like Chess or Fire Emblem.