In fact, regardless of whether you have a pirated version of the game or a licensed one from Steam or GOG , on Windows, Project Zomboid save files can be found here:
- C:/Users/[Username]/Zomboid/Saves/
As you can see, there are two folders where the saves of the single-player campaign and multiplayer sessions are stored.
However, for devices running other operating systems, the path to the save folder will differ:
Linux (Steam Deck):
- ~/.steam/steam/userdata/[ Your Steam ID ]/108600/
macOS (OS X):
- $HOME/Zomboid/Saves/