The World is a 3rd person RPG, puzzle game. In this game, the main goal is to travel between different world through a portal. Each world is contained in a sphere and each world's playable area is roughly from a small town to a city. The main purpose of the game is to experience different strange and interesting environment. From fantasy to science fiction.
Although The World is a puzzle game, the player doesn't really solve actual puzzles or quizzes for most of the time. Instead, they are to explore the world in order to find clues on how to travel to the next world. The game doesn't tell the player how many worlds are out there, they'll need to find the clues throughout their journey.
There are many ways to open the portal between world. However, the same portal doesn't always lead back to the previews would. The player will need to investigate where the portal leads to, before jumping in.