: An even more advanced modular expansion built on top of Anomaly . While it technically suggests owning the original games to support the devs, it is distributed as a free, independent installer.
: A completely free, standalone total conversion mod that combines maps from all three original games into one massive open world. It features updated graphics and 64-bit engine support. S.T.A.L.K.E.R.: Call of Pripyat Free Download
: Offers the Enhanced Edition which is sometimes given for free to owners of the original trilogy. : An even more advanced modular expansion built