Cadres-1278 (space exploration)

an unknown planet inhabited by humans a little different from ordinary Earthlings where the planet is similar to Earth but with several differences with more advanced technology

an ancient planet whose human species did not only emerge on planet Earth but on another habitable planet a little larger than Earth and the planet is 6 billion years old

There are usually larger cities and rarely smaller cities on the planet and rural areas contain cleaner air and more fertile land than planet Earth.

characters can appear in the story out of nowhere or you can create others besides your protagonist in the RP during the exploration of the planet

309 countries on the planet

It depends, but the story could take place from 2020 onwards depending on how you want to start the story, but it would take place in the 2000s.