Endurance

There are many vast forests in this world. There is a tall white structure in the middle of it, with huge impenetrable walls. There are several mountains and beaches spread across the world, as well as many cave and secret hideouts of the Runaways.

Fantasy, Normal

Normal laws, it's still the same as our world.

The technology is somewhat more advanced. They have tracker chips that are implanted into the Chosen Ones' wrists and are very difficult to remove.

The Controllers have a sort of magic that lets them control the Chosen Ones, from what they do to how they get to the Control Center. The magic is not always reliable, though. It can also be used to pull Chosen Ones from our world to theirs.