I got this in the mail today, the offset print version of Worlds Without Number. I like both this and its sibling game, Stars Without Number, and it is nice to have an offset print (higher than POD) quality book for this game.
This is the fantasy version of Stars Without Number and it is a very cool sort of "dying Earth" fantasy game, so far in the future technology and culture of today's world has crumbled into the dust and only magic remains. We are way past destroyed future style games such as Gamma World or Rifts and into a savage new world where you are free to create your own continents and lands, strange alternate parallel realities, and an almost dream-like world of fantasy where alien runs cross the world and there are no such things as laser pistols, 20th century culture, roads, cities, and computers.
It is like like the Earth has been terraformed a million times by a million star civilizations, many with magic, and then the tired world forgotten and left to its feudal ways.
Or, you can play traditional fantasy with this with orcs and elves on a new world. Or use it as a world generator for Old School Essentials. Or 5th Edition. Or Mythras. Or Aftermath. Or Gamma World. Or Pathfinder 1e or 2e. Or AD&D.
Whatever floats your boat.
It is a game that gives you a cool setup, simple but expressive rules, the best world generation tools out there, and then lets you play however you want.
Which is cool.