S.T.A.L.K.E.R. G.A.M.M.A. is now available as a GOG One-click Mod! Expanded options, refined systems, and fresh ways to explore the Zone – G.A.M.M.A. brings together over 400 curated mods and 100+ custom additions into one cohesive package, ready to install instantly, no setup or modding knowledge required. Whether you’re returning to the Zone or stepping in for the first time, G.A.M.M.A. offers a feature-rich and carefully curated S.T.A.L.K.E.R. experience that’s ready to launch with a single click. See for yourself how awesome and hassle-free it is!