Runeterra (meaning magic earth) is an an oblate spheroid planet and the fictional world where most of the lore of the League of Legends icon League of Legends intellectual property takes place on. Runeterra is currently the only known physical realm located in the larger Runeterra Prime universe. The currently known continents the planet comprises of are Valoran and Shurima. It also boasts several large bodies of water, such as the currently known 18 Seas (like the Conqueror's Sea and the Guardian's Sea), and 2 Oceans with several archipelagos and islands around them (like Ionia, Serpent Isles, and Shadow Isles). The planet revolves around a G-type star while a natural satellite moon revolves around the planet. Runeterra's sun and moon mirrored equivalents also exist in the spirit realm which is connected with Runeterra through numerous gateways.
Composed of both the material and spirit realms, Runeterra is all that separates the celestial powers of creation from the abyssal threat of all undoing. This is a magical world unlike any other-inhabited by peoples both fierce and wondorous.