Sometimes this process can cause errors such as "not responding," or it may prevent the game from closing properly.

If usage is abnormally high, try deleting the jre and jre64 folders located in your game directory ( .../steamapps/common/ProjectZomboid ).

To take full advantage of the x64 architecture, the Project Zomboid team has focused on optimizing the game for the Zulu platform. This involves:

Project Zomboid runs on Windows, macOS, and Linux. By bundling a specific Zulu build (x64), the developers ensure that every player, regardless of OS, runs the exact same Java version. This eliminates the "works on my machine" problem and drastically reduces platform-specific bugs.