R.B.I. Baseball (known as Pro Yakyuu Family Stadium in Japan) is a baseball video game for the Nintendo Entertainment System (NES). It was developed by Namco and published by Tengen and originally released in 1986. R.B.I. spawned two sequels on the NES as well as versions for the Mega Drive/Genesis, TurboGrafx-16 (PC Engine), Sega 32X, Commodore Amiga, Super NES, Sega Game Gear, and Atari ST. R.B.I. is an initialism for "run batted in".