The project began in 2008 and has gone through several major iterations:

S.T.A.L.K.E.R.: Lost Alpha – The Ultimate "What If" Experience

is a massive standalone fan project developed by Dezowave Group that aims to recreate the original vision of Shadow of Chernobyl (SoC). It restores cut content, levels, and mechanics that were removed from the retail game during its long "development hell". Key Features and Content

Unlike standard mods, Lost Alpha is a and does not require the original S.T.A.L.K.E.R. to be installed.