Quark Backpack Plus

Quark Backpack Plus: Curios Back slot & in-backpack shulker opening.

736 Downloads

neoforgeutility

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About this Mod

🎒 Quark Backpack Plus

A lightweight Minecraft 1.21.1 NeoForge mod that adds two practical features to Quark's backpack:

Equip to Curios "Back" slot – No longer occupies the chestplate slot.
Open shulker boxes directly from backpack – More convenient without moving items to inventory.

📌 Dependencies

Mod	Required	Description
Quark	Yes	Core dependency
Quark Oddities	Yes	Unlocks backpack
Curios API	Yes	Slot support

Available Versions

Quark Backpack Plus 1.0.3release

MC 1.21.1neoforge

May 14, 2026

Quark Backpack Plus 1.0.2release

MC 1.21.1neoforge

May 13, 2026

Quark Backpack Plus 1.0.1release

MC 1.21.1neoforge

April 29, 2026

How to Install Quark Backpack Plus on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Quark Backpack Plus". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Quark Backpack Plus server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Quark Backpack Plus compatible with neoforge?

Quark Backpack Plus officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Quark Backpack Plus – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Quark Backpack Plus consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.