What is the title of Pokémon Pokopia’s first expansion-pass installment?

Bubbly Basin is the title of Pokémon Pokopia’s first expansion-pass installment.

Pokopia has a paid three-part expansion pass. Its first installment, Bubbly Basin, released in August 2026, adding content to the game after its original March launch.

The remaining two expansion-pass parts were scheduled for late 2026 and 2027 respectively. This makes Bubbly Basin the first named installment, not the name of the entire pass or a regular region in the base game.

The expansion content builds on Pokopia’s central format of exploration, habitat creation, and Pokémon-themed customization. Players may encounter new aquatic-focused features and furniture through later content, while the original game already includes multiple biomes and a real-time day-and-night cycle.