Which Pokémon Pokopia expansion launched first in August 2026?

Bubbly Basin was the first Pokémon Pokopia expansion, launching in August 2026.

Pokopia has a paid three-part expansion pass. Bubbly Basin is the first part, while the other two parts were scheduled for release in late 2026 and 2027. The expansion adds water-focused content, including diving that lets players reach previously unexplorable regions of the map, along with aquatic-themed Pokémon and furniture.

The name can be confused with an individual biome or with an unreleased later expansion, but Bubbly Basin is specifically identified as the first expansion-pass part. It is also distinct from the game's regular world-restoration systems, which are part of the base game.

The expansion builds on Pokopia's central idea of shaping habitats for Pokémon. By extending exploration into underwater areas, it gives players another environment to investigate and decorate. The release schedule is important because only the first part had launched by August 2026; the remaining parts were planned for later dates.