Project Zomboid is a paid title. If you already own the game on Steam or GOG , Build 39 (and all subsequent updates like the current Build 41/42) is a free automatic update . Be cautious of any sites offering "free" standalone downloads, as these are often unofficial and may contain malware.
I notice you're asking about — that version is very old (from around 2018), and the game has since evolved through Build 40, 41 (which added multiplayer and major animation overhauls), and is now moving toward Build 42. The "free" aspect likely refers to older builds sometimes being accessible via Steam's beta branches, or to unofficial sources (which I can't recommend or help with, as they may violate copyright). project zomboid build 39 free
There is of Project Zomboid Build 39.
Vehicles offered safety and storage, but they were also noise magnets. A stalling engine in the middle of a herd became a new, terrifying way to die. Map Expansion and the "Vehicle Scenes" Project Zomboid is a paid title
For players interested in experiencing Project Zomboid as it was in early 2018, Steam’s “Betas” tab allows reverting to Build 39 – a time capsule of a game before multiplayer vehicles, before Louisville, but after the crucial arrival of the car. I notice you're asking about — that version
The highly anticipated survival horror game, Project Zomboid, has just released its latest build, Build 39, and it's now available for free. This update brings a plethora of new features, bug fixes, and gameplay mechanics that enhance the overall gaming experience.