PistonDupes
PistonDupes is a Purpur/Paper plugin that automatically enables piston-based duplication mechanics by modifying Paper's global configuration.
When the server starts, the plugin:
Looks for:
config/paper-global.ymlSearches the file for:
allow-piston-duplication:If it finds:
allow-piston-duplication: falseit changes it to:
allow-piston-duplication: trueBefore making the modification, it creates:
config/paper-global.yml.backupas a backup of the original configuration.
It does not rely on a specific line number, so it continues to work even if the setting moves somewhere other than line 136.
If piston duplication is already enabled:
allow-piston-duplication: truethe plugin makes no changes.
If the setting cannot be found, it reports a warning in the server console instead of modifying unrelated configuration.
After successfully changing the file, it tells the server administrator that a server restart is required for Paper/Purpur to load the new setting.
What the setting enables
The plugin itself doesn't implement individual duplication mechanics. It simply enables Paper's allow-piston-duplication setting, allowing piston-based duplication mechanics supported by the server, which can include things such as:
- Rail duplication
- TNT duplication
- Carpet duplication
- Other piston-based duplication mechanics that depend on this Paper setting
So the plugin is essentially an automatic configuration manager for Paper's piston-duplication setting, rather than a custom rail/TNT/carpet duplication implementation.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.10, 1.21.11, 26.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as PistonDupes-0.1.jar — drop this file into the mods folder
- Download size: 5 KB
- Download link checked 26 Sept 2026 — working
These come from our own check of the pack file, not from the source page.