Legend of the River King is a unique RPG that includes basic leveling elements as well as a integral fishing component. This first addition to the franchise also included some basic combat elements. The gameplay primarily consists of fishing; however, there are also random battles. Mostly, the protagonist performs quests involving catching fish for various NPCs.
The story centers around a young boy whose little sister falls into a coma. There is a cure, but that cure involves capturing The River KIng; The River King itself is a mystical fish that only exists in a specific hidden location.