Dreams aside, Jacob wakes up to discover the power is out. Soon he realizes the power is out everywhere and it's everyone for themselves. When he starts to encounter Invasion of the Body Snatcher cocoons and a flashing System Builder interface filling his field of view, he discovers how to not only survive the end of the world, but to thrive.  The thing is, he's not sure the world is worth saving.System Builder is a sci-fi take on the litrpg genre basing its system on Quantum Field Theory and the Many Worlds hypothesis told from the point of view of the person building the system, the choices they make, and why.