Who is sonic .exe by Gon See, the creature that is Sonic.exe was created in the void, in a gab between dimensions, making him a non-existent outsider in our universe. This creature was born out of pure dark matter in this voi... Topics: Sonic, Creepy pasta, Sonic .exe Share · April 11, 2016 1:43 pm jewel763 and Gracie like this.