[4] Tajiri also used "Game Freak" as his pen name when he wrote as a freelance writer to publications such as Family Computer Magazine and Famicom Tsūshin.

[5][6] On April 26, 1989, Tajiri, Sugimori and Junichi Masuda started a video game development company with the same name.

Its most popular series, Pokémon—the romanized portmanteau of the Japanese brand Pocket Monsters (ポケットモンスター, Poketto Monsutā)[9]—is published and distributed respectively by The Pokémon Company and Nintendo worldwide.

[13] In February 2020, Game Freak relocated their headquarters to Kanda Square, an office building in Nishikichō shared with Nintendo's Tokyo branch.

[15][16] Shortly afterwards, Game Freak addressed the incident, stating that the leak was due to "unauthorized access to our servers by a third party", which had taken place in August 2024.