Reset part of a Project Zomboid map

Every chunk a player has walked through is saved as its own file. Delete the file and the game builds that chunk fresh the next time someone gets close: loot back, zombies back, player damage gone. This page shows which chunks your save has, lets you box the ones to reset, and deletes those files for you.

1. Open your save folder

Stop the server first, and keep a copy of the save. Deleted chunk files do not go to the recycle bin.

Pick the folder that holds map_meta.bin. Your browser asks for permission to edit it. The files are read and deleted on your computer, nothing is uploaded.

If you can't find the save folder

The folder is named after the save, or after the server for multiplayer. It's the one with map_meta.bin and a map folder in it.

Rented or dedicated server
Download Zomboid/Saves/Multiplayer/<server name> with your host's file manager or SFTP, clean it here, then upload it back over the original.
Windows
Paste %USERPROFILE%\Zomboid\Saves into the folder picker's address bar, then open the game mode and the save.
Linux
~/Zomboid/Saves, same folders as Windows.

Delete these files?