Free Beer is an open source beer project. Founded by Superflex, a Copenhagen artists’ collective which has already released and sold out of version 3.0. They plan on modifying the recipe and using others’ modifications to release a new brew every six months. Based on classic ale brewing traditions, but with added Guarana for a natural energy boost, the recipe and branding elements of Free Beer are published under a Creative Commons license, which means that anyone can use the recipe to brew their own Free Beer or to create a derivative of the recipe. Anyone is also free to earn money from Free Beer, but they must publish the recipe under the same license and credit the work of the founders of the project. All design and branding elements are also available to beer brewers, and can be modified to suit, provided changes are published under the same Creative Commons license. Basically, it boils down to a free beer recipe that can be modified, used and sold as long as it remains free.