In recent years, simulation theory has been spreading in variousareas, from philosophy to science.According to this theory, the reality that we know would be a digital simulation, built by some superior entity or civilization of which we cannot know anything, this, in any case, if it were true, would entail the indispensable presence of other life forms besides our own. But what if this simulation starts to fail? How could our reality, a simple digital fabric, present itself when errors and system crashes occur? Could we thus see what is the true aspect of reality outside of what we know and live thanks to our senses? Could we see what else is inhabited by these forms of life? We believe so, and in this project we want to show how, thanks to simulation errors, suddenly and by mistake, we can reveal an alien reality, made of unknown mechanics, and how our digital reality fights for rebuild itself bringing us back to our daily vision. However, this crash can only leave us with the doubt that something or someone else is present, thus upsetting all our beliefs about who we really are.