This is the most common method for players testing the new build.
If you need debug mode for Build 42 – whether to test mods, spawn items, or recover a bugged save – here’s the method that still works. The old -debug launch option is gone in B42, but there’s a new way. how to enable debug mode project zomboid build 42
Once you've enabled Debug Mode, you can verify that it's working by: This is the most common method for players
Build 42 introduces specific debug options to help players navigate the new world systems: how to enable debug mode project zomboid build 42
Hope this helps other survivors test B42 without frustration.
How do I enable cheats/debug mode on build 42 : r/projectzomboid
: A new "Scenarios" button will appear, allowing you to jump into predefined testing environments.