Autumn Aurora 2 it's modification made by small group from Poland which brings the autumnal atmosphere to the Zone and totally overhauls the graphics, audio and gameplay of S.T.A.L.K.E.R. Shadow of Chernobyl.

Cowlick035 says

10/10 - Agree (25) Disagree (4)

Easily one of the best S.T.A.L.K.E.R. overhaul mods I have ever played. Packed with nothing but improvements and not bloated with unnecessary features and textures that are oh so common in Shadow of Chernobyl overhauls.

Textures are gritty and detailed, weather and lighting is dank and dark and weapons boast some of the best animations I've ever witnessed. But best of all is the sound design, which adds an extra layer of creepiness and fright to the atmosphere of all environments.

This is certainly an incredibly immersive experience comparable only to the MISERY mod of Call of Pripyat, the Shadow of Chernobyl platform does however make better use of such morbidity.

Autumn Aurora 2 earns my vote for 2013 Mod of the Year.