The island-building game Pokémon Pokopia is set to receive its first major downloadable content expansion, titled "Bubbly Basin," on August 5, 2026. Leaks suggest this content will introduce underwater exploration, new aquatic-themed items and attire, and a selection of water-type Pokémon. This upcoming DLC is also intended to offer players a preview of elements that will appear in the mainline series title, Pokémon Winds and Waves.
Bubbly Basin will feature underwater environments and new cosmetic items, including accessories like ties, wings, and hats, according to earlier leaks from 2026. While fans are speculating about the potential inclusion of shiny Pokémon variants, this feature has not been officially confirmed.
The move Dive will be made available as a free download for all players. However, full access to the new underwater areas within Bubbly Basin will require the purchase of a $34.99 expansion pass. This pass is bundled with two further DLC updates.
Details regarding the subsequent DLC updates remain scarce. The second part of the expansion pass is slated for release in late 2026, with the final addition scheduled for 2027. The 2027 update is expected to be substantial, reportedly including a new town and additional characters.
Pokémon Pokopia has achieved significant commercial success since its launch. As of March 2026, the game had sold over 4 million units, positioning it among the top five best-selling Nintendo Switch 2 titles. The game's post-apocalyptic building premise has resonated with a large player base.
Additionally, the Bubbly Basin DLC may draw interest from players anticipating Pokémon Winds and Waves, a mainline series entry for which a release date has not yet been announced. Both titles are expected to feature underwater exploration, though Pokopia's DLC will be playable much sooner. Speculation is also emerging among fans regarding a potential 20-year-old lore connection that could link the two games.