If you want to experience this specific version of the game's history, you can access it via Steam : Right-click in your Library. Select Properties , then navigate to the Betas tab. Choose the legacy build 39 from the dropdown menu.
The map is smaller than Build 41 (no Louisville, no Raven Creek mods). Your best bets are: project zomboid build 39 work
Here is a breakdown of how Build 39 worked and why it was important: Key Features of Build 39 Vehicles Integration: If you want to experience this specific version
If you take one piece of advice from this guide: The saw is mightier than the shotgun. Keep working, survivor. Winter is coming, but in Build 39, winter is only 150 logs away from a warm cabin. survivor. Winter is coming