In Pokémon Pokopia, humans evacuated into space after environmental disasters.
This detail establishes the game’s unusual post-disaster setting. Pokopia takes place in a future where destructive environmental changes have forced humanity to leave the planet. The abandoned world is then explored and rebuilt by Pokémon, with the player character serving as a Ditto that has transformed into a human-like form.
The premise explains why the game contains ruined settlements, empty structures, and landscapes that need extensive restoration. Rather than presenting Kanto as a thriving region full of human trainers, Pokopia imagines a Pokémon-centered world in which habitats, homes, farms, and community spaces must be reconstructed.
Space is sometimes confused with the game’s sky-themed areas or with Cloud Island, but those are gameplay locations and not the stated destination of the human evacuation. The backstory says that humans moved away from Earth into space, leaving Pokémon behind in the damaged environment. That premise is central to the game’s world-building.