Originally a basement-run role-playing game publisher, the company popularized the collectible card game genre with Magic: The Gathering in the mid-1990s, acquired the popular Dungeons & Dragons role-playing game by purchasing the failing company TSR, and experienced tremendous success by publishing the licensed Pokémon Trading Card Game.
Awalnya sebuah penerbit game permainan peran, perusahaannya mempopulerkan genre collectable card game dengan Magic: The Gathering di pertengahan 1990s, mengakusisi permainan peran terkenal Dungeon & Dragons dengan membeli perusahaan yang sedang jatuh TSR, dan mengalami sukses besar dengan menerbitkan Pokémon Trading Card Game.