What game engine does Pokémon Pokopia use?

Pokémon Pokopia uses the Katana Engine.

The engine is identified in the game's technical credits and is one of the details that separates Pokopia from better-known Pokémon releases built with other publicly discussed technologies. An engine supplies the underlying tools used to render environments, manage objects, and support gameplay systems.

Pokopia's engine choice serves a game with substantial world interaction. Players can gather materials, place furniture, modify terrain, cultivate habitats, and move through changing locations. The title also supports a real-time 24-hour clock, weather changes, and multiplayer functionality, all of which require coordinated systems for the living world.

Katana Engine should not be confused with a genre or a developer. It is not the name of the game, the name of the construction system, or a Koei Tecmo studio. The game's developers were Game Freak and Omega Force, while Katana Engine is the technology listed in the technical credits. Because engine information is less visible than release dates or characters, it makes a particularly useful advanced trivia fact.