Guinness Book Of World Records

Elite was the first game to feature a [3D] procedurally generated world, while Frontier: Elite II was the first game to feature procedurally generated star systems. Frontier: First Encounters was the first game to contain procedurally generated terrain and textures. Procedural Generation uses random inputs to a computer ‘procedure’ to create something unique that also adheres to certain rules, such as Elite II’s star systems. These were generated by the game aggregating the mass of material within an early solar system into planets and moons that obey the laws of physics, but which have slightly randomised material distribution in order to ensure each system’s uniqueness.

Pretty cool.