Big Fish Eat Small Fish 3D is a casual game with a 3D style, where players take on the role of a small fish in the vast ocean world, growing by continuously devouring smaller fish and aiming to become the overlord of the sea. The game is loved by players for its realistic 3D graphics, simple controls, and the thrilling atmosphere. Players need to control their fish to evade larger predators while grabbing food resources, testing their reaction speed and strategic planning abilities.