No Mercy - Vault 666

Before the Nuclear Winter in 2077 created by the hands of governments of the world, Project Safehouse was set in motion in 2054 by the United States of America with Vault Tech's help, a company specialized in the field to create around 200 special Vaults around the nation. Inside those 200 Vaults, Vault Tech made different experiments, each with its own reason. Fortunately, many if not almost all of the experiments failed or they couldn't finish it. But, unfortunately, not all of them failed. ( Hello, I'm new to writing and to English. So, please, have patience with me. )