A constructed world is an imaginary world, usually created for a novel, video game, or role-playing game, that possesses a unique geography and climate and is often home to sapient creatures with their own cultures and histories. Detailed maps and languages of their creators’ invention help make these worlds seem more realistic. J.R.R. Tolkien’s Middle-earth is one example of a constructed world. There are two major approaches to world-building: top-down and bottom-up. How do they differ? Discuss
Source: The Free Dictionary