Mean 18 is a golf simulation game released for DOS in 1986 by Accolade. It features realistic golfing mechanics with an overhead view of the course. Players can choose from several challenging courses, including famous ones like Pebble Beach. The game offers stroke play and match play modes, allowing solo or multiplayer experiences. A notable feature is the course editor, enabling players to design and play custom courses, adding replay value to the classic golfing experience.