Create: Big Contraptions
Java mod listed for Minecraft 1.21. File opened and checked on 18 Oct 2026; downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
Disclaimer
This is NOT a Create addon, the mod does not depend on it. It only fixes https://bugs.mojang.com/browse/MC-185901 . It's created for the purpose of solving specifically the big contraptions that players carry and render, therefore the name "Create:", but it's not a Create mod addon.
Information
It's a client-only mod. It makes playerdata be able to get to 10MB instead the vanilla 2MB
Error without the mod:
Thanks to
XLPackets 1.16, I ported that feature from that version of XLPackets. Unlike XLPackets, this mod is client side only.
- 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 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 bigcontraptions-neoforge-1.0.jar — drop this file into the mods folder
- Download size: 6 KB
- Download link checked 7 Oct 2026 — working
These come from our own check of the pack file, not from the source page.