Ultima III and Civilization draw the tiles via software, while the maze in the original arcade version of Pac-Man is made of tiles displayed by the game's graphics hardware. Tiles allow developers to build with a set of reusable components instead of drawing everything individually.
Similar to Ultima III and Civilization, which access tile information via software, the maze in the original arcade version of Pac-Man is constructed from tiles shown by the game's graphics hardware. Tiles allow developers to build with pre-existing components instead of creating each element individually.