Invader is the pseudonym of a French urban artist, born in 1969, whose work is modelled on the crude pixelation of 1970s-1980x 8-bit video games. He took his name from the 1978 arcade game Space Invaders and much of his work is composed of square ceramic tiles inspired by video game characters. Although he prefers to remain incognito and guards his identity carefully his distinctive creations can be seen in many highly visible locations in more than 65 cities in 33 countries. He document each intervention in a city as an Invasion and has published books and maps of the location of each of his street mosaics. In addition to working with tiles, Invader is one of the leading proponents of indoor mosaics created using stacks of Rubik Cubes in a style he refers to a Rubikcubism. He is also known for his QR code mosaic works.