Wolfire Games today announced that Overgrowth, the sequel to the classic indie title Lugaru, has reached Alpha status. The Alpha includes the beginnings of Overgrowth's map editor and showcases the game's terrain with advanced effects like, multi-sampled HDR framebuffer objects, dynamic blurred cube maps for ambient lighting, object and tangent space normal maps and atmospheric haze. Overgrowth will be available for Windows, Mac and Linux, in Q1 2009.