The games were first mentioned during E3 2017 during which it was announced that a core Pokémon RPG was in development on the Nintendo Switch. It was later confirmed with the announcement and eventual release of Pokémon Let's Go, Pikachu! and Let's Go, Eevee! that the games were still in development and scheduled to release in 2019. The games were first shown in a Pokémon centered Nintendo Direct broadcasted on February 27, 2019. The name, region and starters were all shown during the presentation. Another Pokémon centered Nintendo Direct was broadcasted on June 5, 2019. During the direct, new Pokémon were shown, the two cover legendaries were revealed and various informations about the gameplay were shown both in a trailer and via various Game Freak employees who hosted the direct.
It is the first mainline Pokémon game to release on a system that can be considered a home console.