http://www.dsogaming.com/news/s-t-a...ers-cut-1-4005-is-now-available-for-download/
http://www.moddb.com/mods/lost-alpha/downloadsIn case you weren’t aware of, the Lost Alpha mod aims to bring back to life the old design and atmosphere of the STALKER build that was shown back in 2002. S.T.A.L.K.E.R. – Lost Alpha features new levels and enemies, overhauls the game’s visuals, and packs numerous gameplay improvements and enhancements.
S.T.A.L.K.E.R. – Lost Alpha Developer’s Cut 1.4005 enables detail textures and bumps for many surfaces, tweaks all weather cycles and brightness-related console parameters, improves weapons ballistics, fully implements DX10 renderer and gamma, adds inventory weight during trade and more.