※ This title supports English, Japanese and Korean. “The world you knew is already collapsed.” As an explorer in a bunker, explore a new world 500 years in the future and decide its fate. You can lead the world back to doom or bring it to peace. It all depends on your choices. ◼STORY At the end of the 21st century, world was engulfed in great war and human civilization had come to an end. Handful of people who escaped from the devastation of the war hid themselves in a huge bunker, then hundreds of years have passed. The door of the bunker is finally opened after 500 years of seclusion, the people cut off from outer world are confronted with world that has completely changed. The bunker decides to send explorers to the surface to survive. You are the explorers of the bunker. Outer world, continent is in chaos. Several factions are fighting for supremacy and the bunker's expedition is thrown into the middle of storm. Every choices you make has a butterfly effect that can either bring...