Legend of the River King: 1997
Developer: Pack-in-soft
Genre: Adventure
Legend of the River King Game Manual

You’ll need all your angling and survival skills to succeed in this unique fishing RPG. On a perilous quest to capture a mysterious and mystical fish, you’ll deploy a variety of tackle in both quiet lakes and raging rapids. Along the shores, dangerous animals are a constant threat. To get supplies, you’ll sell some of your catch at village markets. You can also try your hand at raising a pet fish from embryo to adult and watch as it grows and even changes species!