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🧩 What is Probably Backpacks?

Probably Backpacks adds a complete tiered backpack system to your 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 — it hooks into the accessory system to provide a seamless backpack experience with custom textures, recipes, and a rich upgrade system.

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⚡ Features at a Glance

	Feature
🎒	6 Backpack Tiers	Leather → Copper → Iron → Gold → Diamond → Netherite
📦	27 to 120 Slots	Scale from a small pouch to a massive storage vault
⬆️	7 Unique Upgrades	Crafting Station, Pickup, Magnet, Feeding, Refill, Compacting, Stack
👀	3D Backpack Model	Visible on the player's back with auto-hide when looking down
🔑	Hotkey Support	Open your backpack with a sneak combo — no commands needed
🛠️	Crafting Recipes	Every backpack & upgrade has a configurable crafting recipe
🚫	Item Blacklist	Prevent specific items from being stored in backpacks
🎨	Custom Textures	Built-in resource pack with unique textures for every tier & upgrade
⚡	Performance Tuned	Configurable tick intervals for magnet and feeding tasks

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🎒 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!

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⬆️ Upgrades

Upgrades are placed into the backpack's upgrade slots to grant powerful abilities:

Upgrade	Effect
🔧 Crafting Station	Open a portable crafting table from within your backpack
📥 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)
🗄️ Stack Upgrade	Increase the max stack size of items in the backpack

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📊 Stats

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🧪 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

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⬆️ Upgrade Recipes (click to expand)

🔧 Crafting Station Adds a portable crafting table to your backpack. Oak Planks Crafting Table Oak Planks Oak Planks Iron Ingot Oak Planks Oak Planks Crafting Table Oak Planks

📥 Pickup Upgrade Auto-collects picked-up items into the backpack. Piston String Iron Ingot String Redstone Redstone Redstone

🧲 Magnet Upgrade Pulls nearby items directly into your backpack. Ender Pearl Iron Ingot Ender Pearl Iron Ingot Diamond Iron Ingot Redstone Lapis Lazuli

🍖 Feeding Upgrade Auto-feeds the player using food stored in the backpack. Golden Carrot Golden Apple Gold Block Glistering Melon Slice Ender Pearl

🔄 Refill Upgrade Auto-refills hotbar items from the backpack as they deplete. Ender Pearl Iron Ingot Diamond Iron Ingot Redstone Chest Redstone

📦 Compacting Upgrade Auto-compresses items into their block forms. Iron Ingot Piston Iron Ingot Piston Iron Block Piston Redstone Piston Redstone

🗄️ Iron Stack Upgrade Doubles the max stack size of items in the backpack. Iron Block Iron Block Iron Block Iron Block Diamond Iron Block Iron Block Iron Block Iron Block

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🔧 Server Compatibility

Minecraft	1.14 — 1.21+
Server Software	Spigot, Paper, Purpur
Java	8+
Required Dependency	CuriosPaper

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🎮 How It Works

1. Install CuriosPaper and ProbablyBackpacks into your plugins/ folder
2. Craft a backpack using the recipe for your desired tier
3. Equip the backpack in your CuriosPaper Back slot
4. Use /bp or the sneak hotkey to open your backpack
5. Install upgrades into the upgrade slots for extra abilities!

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💬 Need Help?

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📥 Quick Start

1. Download CuriosPaper.jar and ProbablyBackpacks.jar
2. Drop both into your server's plugins/ folder
3. Restart the server
4. Craft a Leather Backpack and equip it in the Back slot
5. Type /bp or use the sneak hotkey — you're all set!

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