✦ 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.
[!IMPORTANT]
This plugin requires CuriosPaper to function!
✦ 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 |
|
⚔️ Tool Swapper
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!
