Dupes Returned
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthPer-block-type control over Minecraft's duplication exploits, with an in-game GUI. Paper 1.21.x.
Paper only exposes a single global allow-piston-duplication switch — all dupes on, or all dupes off. DupesPlus adds fine-grained per-type control for TNT, sand, rails, carpet, and the end-portal gravity-block dupe, all from one chest menu.
Features Five toggles, one GUI — TNT · Sand · Rails · Carpet · End Portal Per-dupe throttles — max-per-cycle cap and per-position cooldown-ticks Rail sub-toggles — powered / detector / activator rails independently Comment-preserving edits to paper-global.yml — DupesPlus writes the two unsupported-settings for you and warns when a restart is needed Tab-completed /dupe chat commands Optional op broadcast on every toggle Zero-allocation fast path — the piston listener early-returns when nothing is throttled, so no perf cost with defaults No external deps · no reflection · no NMS · no telemetry
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- 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 DupesPlus-1.1.0 (1).jar — drop this file into the mods folder
- Download size: 35 KB
- Download link checked 10 Oct 2026 — working
These come from our own check of the pack file, not from the source page.