Which studio co-developed Pokémon Pokopia alongside Game Freak?

Omega Force co-developed Pokémon Pokopia alongside Game Freak.

Omega Force is a development studio associated with Koei Tecmo. Game Freak, the long-running Pokémon developer, partnered with Omega Force for Pokopia because Omega Force had experience with sandbox-style games. Its previous work included Dragon Quest Builders 2, a relevant example of building-focused design.

Game Freak’s Shigeru Ohmori conceived Pokopia as a spin-off while thinking about how players might create habitats for Pokémon. Omega Force’s experience helped support the game’s crafting, construction, and open-ended environmental interaction.

The companies had different roles within the collaboration, but the game is officially described as co-developed by Game Freak and Koei Tecmo’s Omega Force. Nintendo and The Pokémon Company published it. That distinction is important: Nintendo and The Pokémon Company are publishers, while Omega Force is the co-developing studio sought for its sandbox expertise.