[plugin] ProbablyBackpacks - CuriosPaper

✦ 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

• 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 ✦

Each tier requires the previous backpack as an ingredient — creating a natural progression chain!

• Leather Backpack — 27 Slots · 1 Upgrade Slot · Leather + String + Chest
• Copper Backpack — 45 Slots · 2 Upgrade Slots · Copper Ingots + Leather Backpack
• ⚪ Iron Backpack — 54 Slots · 3 Upgrade Slots · Iron Ingots + Copper Backpack
• Gold Backpack — 81 Slots · 4 Upgrade Slots · Gold Ingots + Iron Backpack
• Diamond Backpack — 108 Slots · 5 Upgrade Slots · Diamonds + Gold Backpack
• Netherite Backpack — 120 Slots · 6 Upgrade Slots · Smithing Table + Netherite Ingot

✦ Upgrades ✦

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

️ Utility Upgrades

• 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

• 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

• 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 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 [​font=courier new]config.yml
• [​/font].[​/*]

✦ Server Compatibility ✦

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

✦ How It Works ✦

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

✦ Stats & Support ✦





✦ Quick Start ✦

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