
Free standalone — no trilogy GOG install required. The whole Zone as a free-roaming survival sandbox.
FPS / Survival · 2018
That One Thing
The whole trilogy's map set opens as one free-roaming survival sandbox with faction starts you choose.
Anomaly is the great open-ended Zone: every major region, faction starts, story routes, economy and difficulty tuning deep enough that the same road feels different twice. Standalone ModDB package — no Call of Pripyat or Shadow of Chornobyl GOG copy required. Launch AnomalyLauncher once and confirm a save works before installing the optional GAMMA edition.
Anomaly is a large, open-ended standalone take on the Zone, with all major regions, faction starts, story routes and an economy and difficulty system tuned for replay. It is free and does not require the original games.
The most complete free S.T.A.L.K.E.R. experience.
Best for
Not for
Checking…
Minimum Requirements
Windows 7 · Dual-core CPU · 4 GB RAM · DX9 GPU · 10 GB storage
Recommended Requirements
Windows 10 · Quad-core · 8 GB RAM · DX11 GPU · 20 GB storage
Installed and played end to end by the PlayBound team.
Installed and played end to end by the PlayBound team.

Requires Anomaly (default edition) first. Grok's curated hardcore survival overhaul — install from the official Grokitach/Stalker_GAMMA GitHub guide.
Looking for the base game?
S.T.A.L.K.E.R. Anomaly has an overview, reviews, guides, and discussions covering every edition.