What is Pokémon Pokopia’s underlying game engine called?

Pokémon Pokopia runs on the Katana Engine.

The engine is listed in the game’s technical credits alongside its developers, Game Freak and Koei Tecmo’s Omega Force. Pokopia’s engine supports a game built around a continuously explorable environment, construction, terrain changes, crafting, and interactions with many Pokémon habitats.

The Katana Engine should not be confused with the game’s genre. Pokopia is described as a social simulation and sandbox game, while the engine is the underlying technology used to create and run that experience. It is also separate from the Nintendo Switch 2, which is the game’s platform.

Pokopia’s technical identity is notable because the project brought Game Freak together with Omega Force, a Koei Tecmo studio with experience in sandbox-style development. The collaboration helped support a Pokémon game focused on world-building rather than the conventional battle-and-collection structure.