Harvest Moon GB is the second game in the Story of Seasons series of video games, and was developed and published by Victor Interactive Software. Harvest Moon GB is the first portable Harvest Moon game, developed for the Game Boy.

Before beginning, the player is able to choose whether to play as a girl or a boy, and name themselves. At the beginning of the game, the player's deceased grandfather visits them as a spirit and asks them to take over his farm. He implores them to succeed him as a Ranch Master, stating he will check on the player at the end of each winter to determine his progress. The player must develop their farm by growing and selling crops, and raising livestock to reach this goal. If the farm meets his criteria for you to be a Ranch Master, the player may receive extra tools; if he thinks the farm does not, a game over is given.