Built following the discovery of the extraterrestrial giant, "Polyphemus," "Acis Island is an artificial land mass of unprecedented scale. Acis Island originally came into being as an outgrowth of the Ophion Foundation’s underwater laboratory built specifically to study the creature. Construction of the island began with assistance from the United States in order to asses the potential threat, if any, Polyphemus poses to the world. To this day, the island possesses a subterranean facility that stretches down to the ocean floor.