: A massive, highly customizable "megamod" that combines maps from all three original games into one sandbox experience. It is free to download on community sites like ModDB .
If you are looking for a free experience within the S.T.A.L.K.E.R. universe, the modding community has created high-quality that do not require the base game to be installed. These are legally permitted as they use open-source engines and community-made assets:
While is not officially available as a free standalone game, it frequently goes on deep sale for as little as $3.99 . It is also included in the Legends of the Zone Trilogy for modern consoles and PC. Where to Purchase (PC)
