If you read one book from this list, make it this one. The protagonist has been locked in a Vault for centuries, and the retrofuturistic alternative timeline of the game means even the player isn't familiar with the culture and technology that was developed between the 1950s and the present. While Fallout doesn't have the same religious angle, both the protagonist of the game and the player himself experience a similar sense of wonder as they explore the irradiated wasteland. Much like in the book, the frame of reference for old technology and culture has been lost. In the depths of the Utah desert, long after the Flame Deluge has scoured the earth clean, a monk of the Order of Saint Leibowitz has made a miraculous discovery: holy relics from the life of the great saint himself, including the blessed blueprint, the sacred shopping list, and the hallowed shrine of the Fallout Shelter. One of the core inspirations behind Fallout, and more specifically some of the factions in that universe, like the Brotherhood of Steel and a location called The Abbey in Fallout 2 (which was unfortunately cut from the game).
