Project Zomboid allows you to customize JVM memory allocation — one of the most impactful performance tweaks available.

When the Zulu Platform process hangs, crashes, or consumes massive system resources while running Project Zomboid, it is usually caused by one of these factors:

To run the 64-bit version of the game, you must have the 64-bit version of Java (Zulu) installed . Having only 32-bit Java on a 64-bit system will prevent the 64-bit game client from functioning properly.