Quilted Multiverse, Quantum Multiverse, Ultimate Multiverse and more theories all describe an infinite universe or an infinitely amount of (finite) universes (Greene, 2011). That would mean there are infinitely many planets with some sort of life on them. Even infinitely many planets where humans have evolved. Thus, infinitely many planets like Earth. Infinitely many planets that are different from ours.
But also infinitely many planets where you exist.
Not all infinities have the same size. There are more versions of Earth where you don’t exist. Or Earths were versions of you exist with the same nature, but different nurture. But a small infinity of versions exactly like you exists somewhere in the infinite universe.
This computer game is a bridge between you and other versions of yourself in the universe, all of you who came across this simulation at this exact time.
There are infinitely many versions of yourself that follow the exact same path as you. But also infinitely many versions may have made every decision likewise you, but chose a different shape in this computer simulation. Or the same shape, but a slightly different path. Versions of you whose choice is influenced by that one time in high school they did dye their hair, something you didn’t dare.
Remember that there are also infinitely many versions of you who will make all the same choices, but maybe come across this game in a day or so, thus who do the same thing but do not live in a parallel time. And even more infinitely versions of yourself that live a life like yours but will never come across this computer game.
You might try to be different, but can you in infinity?
Design decisions:
You first see a window where you can choose between four shapes. This is the first choice you make. Then a screen follows where you can move your shape across the screen. Every step you take, is another decision you make. You will see other shapes move across the screen, these are guided by other versions of you on other planets. Some of them are also followed by other shapes. There are infinitely many, but the farther away they are, the less clear they are. Some will have chosen the same shape and will follow the same path as you, others may have made different choices.
Since there is a vacuum in space, no sounds can be heard. NASA converted radio waves into sound waves. In this video are the radio waves around Earth that are compiled by NASA into 'Song of Earth'. Infinitely Earths across the universe will sound exactly the same. A larger infinity of Earths will sound different.
The OpenFrameworks code can be found here.
Reference
Greene, B. (2011). The Hidden Reality: Parallel Universes and The Deep Laws of the Cosmos. New York, NY: Alfred A. Knopf.