Mojang (creators of Minecraft) and Friends are hosting The Annual Mojam and making new games for charity over the next three days.
Mojam 2013 features game companies Mojang, Oxeye, Wolfire, Vlambeer, Grapefrukt, Ludosity. All of whom will be streaming their new game creation over the next 3 days. The Humble Bundle is a pay-what-you-want celebration of gaming and its positive impact on the community. You can watch as they stream game creation for 8 new games over the next three days, donate over a penny and you can play them (or their prototype as per the video). The proceeds are split between the Electronic Frontier Foundation and the Mojang-UN Habitat partnership Block by Block.
You can watch the introduction video below and check out the site and streams at here.