Replication Upgrade
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.

Replication Upgrade
Adds improved versions of some replication components and the Energy Materializer.
Improved Replicator
A replicator that works like the base Replication replicator but is faster (shorter cycle by default). It uses the same matter network and chips.
Matter Tanks
Two higher-capacity matter tanks that behave like the base Replication Matter Tank but store more matter:
- Deep Matter Tank – typically 2× the base tank capacity (configurable).
- Abyssal Matter Tank – typically 4× the base tank capacity (configurable).
They connect to matter pipes and participate in the same network. Capacity multipliers can be adjusted in the mod config.
Energy Materializer
A machine that converts RF/FE (energy) into matter and outputs it into the matter network.
- Connect it to your power grid and to matter pipes (or adjacent matter tanks).
- Choose which matter type to produce in the GUI; production rate is configurable (slider).
- It draws power and fills the network with the selected matter, so you can feed replicators or other machines without only using Disintegrators.
Energy capacity and max production multiplier are configurable. Optional: you can define conversion recipes (which matter types are available and their energy cost) via an external JSON file (see config for the path).
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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 CurseForge — 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 rep_up-1.0.0.0.1-neoforge-1.21.1.jar — drop this file into the mods folder
- Download size: 109 KB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.