This short text briefly presents the “Visual Theogonies”, a piece of software developed in Ruby that create images which have no external index, i.e. are the result of pure random mathematical manipulation of a given set of data contained within the computer memory. These are a collection of images derived from chance and produced within a playful context. The term “Theogonie” is borrowed from a poem written by the Greek Hesiod in the late eighth century BC. The poem regards the birth of the Greek gods, and therefore the pictures carry the subtitle “images of the computational god”. In this case, however, the gods are transmuted by the will of computational algorithms governed by chance.