✦ What is Probably Backpacks? ✦
Probably Backpacks adds a complete tiered backpack system to your Minecraft server. Players craft backpacks from Leather all the way up to Netherite — each tier offering more storage and more upgrade slots .
Backpacks are equipped in the CuriosPaper Back slot and are visible on the player's back as a 3D model! This plugin is a CuriosPaper addon , hooking into the accessory system to provide a seamless experience with custom textures, real-time dyeing, and a powerful upgrade system.
This plugin requires CuriosPaper
✦ Features ✦
🎒 Core Backpack System
Feature
Description
🎒
6 Backpack Tiers Leather → Copper → Iron → Gold → Diamond → Netherite
📦
27 to 120 Slots Scale from a small pouch to a massive storage vault
⬆️
19+ Upgrades Crafting, Magnet, Cooking, Anvil, Jukebox, Tool Swapper & more
🎨
Real-time Dyeing Over 16 colors with live 3D model updates
🧟
Mob Drops Mobs can spawn wearing backpacks — loot them for extra storage
👀
3D Models Visible on the player's back with auto-hide when looking down
🔑
Hotkey Support Open your backpack with a double-sneak combo — no commands needed
🗄️
Massive Stacks Stack items up to 1024 with Netherite Stack Upgrades
✦ Backpack Tiers ✦
Tier
Slots
Upgrade Slots
Key Material
🟤 Leather Backpack
27
1
Leather + String + Chest
🟠 Copper Backpack
45
2
Copper Ingots + Leather Backpack
⚪ Iron Backpack
54
3
Iron Ingots + Copper Backpack
🟡 Gold Backpack
81
4
Gold Ingots + Iron Backpack
🔵 Diamond Backpack
108
5
Diamonds + Gold Backpack
🟣 Netherite Backpack
120
6
Smithing Table + Netherite Ingot
Each tier requires the previous backpack as an ingredient — creating a natural progression chain!
✦ Upgrades ✦
Upgrades are placed into the backpack's upgrade slots to grant powerful abilities:
🛠️ Utility Upgrades
Upgrade
Effect
🔧 Crafting Station
Open a portable crafting table from within your backpack
🔨 Anvil Upgrade
Portable anvil for repairing items on the go
🎵 Jukebox Upgrade
Play music discs directly from your backpack
🛠️ Smithing Upgrade
Portable smithing table for gear progression
⚔️ Tool Swapper
Automatically swaps to the best tool for the block you're mining
🧺 Automation Upgrades
Upgrade
Effect
📥 Pickup Upgrade
Automatically collect picked-up items into your backpack
🧲 Magnet Upgrade
Pull nearby items directly into your backpack
🍖 Feeding Upgrade
Auto-feed the player using food stored in the backpack
🔄 Refill Upgrade
Auto-refill hotbar items from the backpack as they are used
📦 Compacting Upgrade
Automatically compress items into blocks (e.g. Iron Ingots → Iron Block)
🍳 Cooking Upgrades
Upgrade
Effect
🔥 Smelting Upgrade
Portable furnace that smelts items while you walk
💨 Blasting Upgrade
High-speed smelting for ores
🍖 Smoker Upgrade
Rapid cooking for food items
🗄️ Storage Upgrades
Upgrade
Effect
🛠️ Upgrade Base
The fundamental component used to craft all other upgrades
🟠 Copper Stack
Increases max stack size of items in the backpack to 96
⚪ Iron Stack
Increases max stack size of items in the backpack to 128
🟡 Gold Stack
Increases max stack size of items in the backpack to 256
🔵 Diamond Stack
Increases max stack size of items in the backpack to 512
🟣 Netherite Stack
Increases max stack size of items in the backpack to 1024
✦ Dyeing & Mobs ✦
🎨 Dyeing System
Express yourself with over 16 unique colors ! Leather backpacks can be dyed directly within the backpack inventory.
Simple Dyeing : No complex GUIs! Simply drop any Minecraft dye onto the dye button in the backpack interface.Remove Color : Use a Water Bucket on the dye button to clear the color.Live Updates : The 3D model on your back updates instantly when you change the color.
🧟 Mob Drops
Backpacks aren't just for players anymore! Zombies and Skeletons have a small chance to spawn wearing a backpack.
Visual Models : You can see exactly which tier of backpack a mob is wearing.Lootable : Defeat the mob for a chance to collect their backpack!Configurable : Adjust spawn rates and which tiers mobs can carry in the config.yml.
✦ Recipes ✦
🎒 Backpack Recipes (click to expand)
🟤 Leather Backpack
Slots: 27 · Upgrade Slots: 1
The starting tier backpack. Requires basic materials to craft.
String
Leather
String
String
Chest
String
Leather
Leather
Leather
🟠 Copper Backpack
Slots: 45 · Upgrade Slots: 2
An upgrade from leather — requires copper ingots and a Leather Backpack.
Copper Ingot
Copper Ingot
Copper Ingot
Copper Ingot
🟤 Leather Backpack
Copper Ingot
Copper Ingot
Copper Ingot
Copper Ingot
⚪ Iron Backpack
Slots: 54 · Upgrade Slots: 3
Solid mid-tier storage. Requires iron ingots and a Copper Backpack.
Iron Ingot
Iron Ingot
Iron Ingot
Iron Ingot
🟠 Copper Backpack
Iron Ingot
Iron Ingot
Iron Ingot
Iron Ingot
🟡 Gold Backpack
Slots: 81 · Upgrade Slots: 4
High-capacity storage with plenty of room for upgrades.
Gold Ingot
Gold Ingot
Gold Ingot
Gold Ingot
⚪ Iron Backpack
Gold Ingot
Gold Ingot
Gold Ingot
Gold Ingot
🔵 Diamond Backpack
Slots: 108 · Upgrade Slots: 5
Premium-tier storage. Only one step away from the ultimate backpack.
Diamond
Diamond
Diamond
Diamond
🟡 Gold Backpack
Diamond
Diamond
Diamond
Diamond
🟣 Netherite Backpack
Slots: 120 · Upgrade Slots: 6
The ultimate backpack. Crafted at a Smithing Table using the Netherite Upgrade template.
Component
Item
Template Netherite Upgrade Smithing Template
Base 🔵 Diamond Backpack
Addition Netherite Ingot
⬆️ Upgrade Recipes (click to expand)
🛠️ Upgrade Base
The fundamental component for crafting most upgrades.
String
Iron Ingot
String
Iron Ingot
Leather
Iron Ingot
String
Iron Ingot
String
🔧 Crafting Station
Adds a portable crafting table to your backpack.
Oak Planks
Crafting Table
Oak Planks
Oak Planks
🛠️ Upgrade Base
Oak Planks
Oak Planks
Crafting Table
Oak Planks
📥 Pickup Upgrade
Auto-collects picked-up items into the backpack.
Piston
String
🛠️ Upgrade Base
String
Redstone
Redstone
Redstone
🧲 Magnet Upgrade
Pulls nearby items directly into your backpack. Requires the Pickup Upgrade.
Ender Pearl
Iron Ingot
Ender Pearl
Iron Ingot
📥 Pickup Upgrade
Iron Ingot
Redstone
Diamond
Lapis Lazuli
🍖 Feeding Upgrade
Auto-feeds the player using food stored in the backpack.
Golden Carrot
Golden Apple
🛠️ Upgrade Base
Glistering Melon Slice
Ender Pearl
🔄 Refill Upgrade
Auto-refills hotbar items from the backpack as they deplete.
Ender Pearl
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Redstone
Chest
Redstone
📦 Compacting Upgrade
Auto-compresses items into their block forms.
Iron Ingot
Piston
Iron Ingot
Piston
🛠️ Upgrade Base
Piston
Redstone
Piston
Redstone
Auto-swaps to the best tool for the block you are mining.
Redstone
Wood Sword
Redstone
Wood Pick
🛠️ Upgrade Base
Wood Axe
Iron Ingot
Wood Shovel
Iron Ingot
🔨 Anvil Upgrade
Adds a portable anvil to your backpack.
Anvil
Diamond
Anvil
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Chest
🎵 Jukebox Upgrade
Play music discs directly from your backpack's GUI.
Jukebox
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Redstone
🛠️ Smithing Upgrade
A portable Smithing Table for your backpack.
Smithing Table
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Chest
🔥 Smelting Upgrade
Smelts items automatically while you travel.
Redstone
Iron Ingot
Redstone
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Redstone
Furnace
Redstone
💨 Blasting Upgrade
High-speed smelting for ores and materials.
Redstone
Iron Ingot
Redstone
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Redstone
Blast Furnace
Redstone
🍖 Smoker Upgrade
Rapidly cooks food items while you're on the move.
Redstone
Iron Ingot
Redstone
Iron Ingot
🛠️ Upgrade Base
Iron Ingot
Redstone
Smoker
Redstone
🟠 Copper Stack Upgrade
Increases max stack size in the backpack to 96 .
Copper Block
Copper Block
Copper Block
Copper Block
🛠️ Upgrade Base
Copper Block
Copper Block
Copper Block
Copper Block
⚪ Iron Stack Upgrade
Increases max stack size in the backpack to 128 .
Iron Block
Iron Block
Iron Block
Iron Block
🟠 Copper Stack Upgrade
Iron Block
Iron Block
Iron Block
Iron Block
🟡 Gold Stack Upgrade
Increases max stack size in the backpack to 256 .
Gold Block
Gold Block
Gold Block
Gold Block
⚪ Iron Stack Upgrade
Gold Block
Gold Block
Gold Block
Gold Block
🔵 Diamond Stack Upgrade
Increases max stack size in the backpack to 512 .
Diamond Block
Diamond Block
Diamond Block
Diamond Block
🟡 Gold Stack Upgrade
Diamond Block
Diamond Block
Diamond Block
Diamond Block
🟣 Netherite Stack Upgrade
Increases max stack size in the backpack to 1024 .
Netherite Block
Netherite Block
Netherite Block
Netherite Block
🔵 Diamond Stack Upgrade
Netherite Block
Netherite Block
Netherite Block
Netherite Block
✦ Stats & Support ✦
✦ Quick Start ✦
Download CuriosPaper.jar and ProbablyBackpacks.jar
Drop both into your server's plugins/ folder
Restart the server
Craft a Leather Backpack and equip it in the CuriosPaper Back slot
Use the Double-Sneak hotkey — you're all set!
