"Unreal Engine 4 launches today. What we’re releasing is both simple and radical: everything.

Epic’s goal is to put the engine within reach of everyone interested in building games and 3D content, from indies to large triple-A development teams, and Minecraft creators as well. For $19/month you can have access to everything, including the Unreal Editor in ready-to-run form, and the engine’s complete C++ source code hosted on GitHub for collaborative development."

19 € per month! Let's make UT4. :D