A tile-based video game is a type of game where the playing area is made up of small square-shaped images called tiles that are laid out in a grid. The Tilemap component is a system that stores and handles the different tile assets for creating levels, worlds or scenes in a 2D game in Unity. Each tile can use a different graphic (for example, bricks for a wall, grass or ground texture, etc) and can be ‘painted’ onto a grid using the Tile Palette to create a scene very quickly. You can also create different tiles for the edges or corners of an object such as a wall.