Alpha Centauri is an upcoming First Person Science Fiction video game currently in planning by L-mod United Kingdom, there will not be any leaks of any information about yet. The only information we can give is that it will not be ready until Autumn 2013.
Alpha Centauri uses the ShadowEdge Physics Engine Version 1.5, this version allows Light beams to appear, this is actual images of the video game in beta stage development.