ModsJava
PacketBlocks
A lightweight Spigot/Paper library for creating and managing client-side, packet-based Minecraft blocks. Free Minecraft Java mod for 1.20, 1.20.1, 1.20.2.
⬇ Download on ModrinthQuick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1, 1.20.2
- 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.
Verified by MCModsHub
- Ships as PacketBlocks-1.2.6.jar — drop this file into the mods folder
- Download size: 547 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.