Pokémon Diamond and Pearl were the first main-series Pokémon games for the Nintendo DS.
Released in Japan in 2006 and internationally in 2007, the games introduced the Sinnoh region and the fourth generation of Pokémon. Their Nintendo DS design supported two screens, touch controls, wireless communication, and compatibility with several earlier Pokémon features.
Diamond and Pearl added 107 new Pokémon species, including the Legendary Pokémon Dialga and Palkia. They also introduced the physical/special move-category split, which changed how individual moves interact with Pokémon stats and became a major foundation for later battle systems.
The games are sometimes confused with Pokémon X and Y, which were the first main-series entries on Nintendo 3DS, or Pokémon Scarlet and Violet, which were released for Nintendo Switch. Diamond and Pearl later received Nintendo DS remakes titled Pokémon Brilliant Diamond and Shining Pearl for Switch.