Mojang the continued development of "Minecraft". Within a year, the company grew to a size of twelve employees, with their second video game, "Scrolls", in development, as well as serving as the publisher of "Cobalt". In 2011, Napster founder and former Facebook president Sean Parker offered to invest in Mojang, but was declined. By March 2012, the company had accumulated revenues of over $80 million. In September 2012, Mojang began a partnership with United Nations Human Settlements Programme called "Block by Block", which entails having "Minecraft" players constructing sites in-game to use as a basis for assisted development of the village
Minecraft meters above in-game sea level. "Minecraft" has also been used in educational settings. In 2011, an educational organization named MinecraftEdu was formed with the goal of introducing "Minecraft" into schools. The group works with Mojang to make the game affordable and accessible to schools. In September 2012, MinecraftEdu said that approximately 250,000 students around the world have access to "Minecraft" through the company. A wide variety of educational activities involving the game have been developed to teach students various subjects, including history, language arts and science. For an example, one teacher built a world consisting of various historical landmarks for