The Glory of Heracles III: Silence of the Gods

Heracles no Eikou III - Kamigami no Chinmoku (イラクレスの栄光３　神々の沈黙) is a RPG video game published by Data East released on April 24th, 1992 for the SNES.
Ancient Greece. An era when the heavenly world where the gods live and the human world are not so far apart.
The protagonist loses his memory, but meets a fellow who has the same dream. Each of them will travel together in order to find out who they are.
Around the same time, various parts of the world were hit by unprecedented natural disasters; land suddenly collapsing, monsters boiling from holes leading to the underworld...Something was about to happen throughout the world as the scale of the incident expanded day by day.
Immortal companions who have lost their memory. Their past is the key to solving the mystery of natural disasters...
The story is independent of the other series and can be enjoyed alone.