Pokémon Pokopia can support up to four players according to its game listing.
The listed player range is one to four, so the game can be enjoyed alone or with a group of up to four participants. This fits Pokopia's social design, which allows players to build, decorate, and invite Pokémon and friends into the restored world.
The maximum is four players, not four Pokémon companions. Pokémon neighbours are part of the in-game community and can help with tasks, but they are separate from the number of human players supported by the game.
Pokopia is primarily a life-simulation experience rather than a competitive multiplayer title. Its multiplayer features complement the cooperative focus on creating towns, habitats, and other welcoming spaces.