This is a discussion topic for the Ore project, WorldRebuilder. View the full project on Ore for downloads and more information.
WorldRebuilder
General
WorldRebuilder is protection-like plugin for SpongeForge.
WorldRebuilder allows you to mark and create regions in the world which will be rebuilt after being destroyed.
That means, if anyone destroy something in such region by using a pickaxe, tnt, grenade or anything… all destroyed blocks will be restored in few seconds or minutes (depends on how you configure it).
If you enjoy using World Rebuilder, give this repo a star!
Use Cases
This plugin is useful in situations when you want to let players destroy terrain yet preserve your beautiful buildings.
For example, you are making a WWII style RPG map with guns and vehicles and you would like to let players destroy bunkers and other building but you also don’t want to lose your epic creations that you prepared in that map. In such situation you can use this plugin, mark regions which should be rebuilt and allow players destroy blocks.
Creation of this plugin is really a time consuming task. If you would like to support me then you can star this repo or send me some cookies through PayPal.
A new version has been released for WorldRebuilder, it is available for download here.
Release Notes:
Added:
Drop blocks property has been added to the region. When set to false, destroyed blocks inside regions will not be dropped. You can use /wr region dropblocks <true|false> command to edit this property.
Improved:
Rebuilding item frames & armor stands.
If you find any bugs/problems, please post them at Github.
A new version has been released for WorldRebuilder, it is available for download here.
Release Notes:
Added:
Blocks/entities exceptions. If region is active and someone places a block or entity in it then that entity will be added to exceptions and will not be restored/rebuild.
Improved:
Preventing block/entity drop in regions.
WorldRebuilder will now know if block/entity was placed by someone or the plugin itself.
General improvements.
If you find any bugs/problems, please post them at Github.
A new version has been released for WorldRebuilder, it is available for download here.
First release for Sponge API-8.
World Rebuilder is now updated for Sponge API-8 (targeting Minecraft 1.16.5).
Tested with:
forge-1.16.5-36.2.39
spongeforge-1.16.5-36.2.5-8.1.0-RC1246-universal
Java 8
Release Notes:
Added:
Region rebuild strategies. You can now specify different rebuild strategy while creating a region. Available rebuild strategies are available by using TAB in-game and are also described on the wiki. Don’t worry, strategy can be changed after the region was created as well.
Notifications system. Works only for regions with continuous rebuild. Look up the wiki to get to know more.
Improved:
General improvements.
If you find any bugs/problems, please post them at Github.
Region rebuild strategies. You can now specify different rebuild strategy while creating a region. Available rebuild strategies are available by using TAB in-game and are also described on the wiki. Don’t worry, strategy can be changed after the region was created as well.
Notifications system. Works only for regions with continuous rebuild. Look up the wiki to get to know more.
Improved:
General improvements.
If you find any bugs/problems, please post them at Github.
First release for Sponge API-8. 
is now updated for Sponge API-8 (targeting Minecraft 1.16.5).
Release Notes:
Added:
Improved:
spongeforge-1.16.5-36.2.5-8.1.0-RC1313-universal
Java 8
Let me know how do you use WorldRebuilder! I would be more than happy to hear it!