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Backpackplugin

A plugin that adds backpack using vanilla mechanics for bedrock support

120
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120
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Compatibility

Minecraft: Java Edition

1.21.x

Platforms

Creators

Details

Licensed ARR
Published 2 months ago

๐ŸŽ’ BackpackPlugin

A fully configurable tiered backpack plugin for Paper 1.21 servers. Players can purchase and upgrade backpacks through 6 built-in tiers โ€” each with a unique custom head appearance, auto-pickup, inventory sorting, NPC shop, and unlimited custom types via in-game commands. No resource pack required.

Discord Modrinth GitHub

โœจ Features

  • 6 built-in backpack tiers โ€” Worn Satchel โ†’ Leather โ†’ Iron โ†’ Gold โ†’ Diamond โ†’ Ender
  • Unlimited custom backpack types โ€” add any backpack via backpacks.yml or the in-game wizard
  • Custom player head appearance per tier โ€” no resource pack needed
  • Equippable in the chestplate slot โ€” grants armor points when worn; Shift+Right-click to equip/unequip
  • Works in mainhand, offhand, and chestplate slot
  • Auto-pickup toggle per backpack โ€” items go directly into the bag
  • Sort button inside the GUI โ€” sorts contents alphabetically by item type
  • Rename system โ€” configurable XP cost, supports colour codes
  • FancyNPCs merchant โ€” buy and upgrade backpacks from in-world NPCs
  • Per-backpack upgrade system โ€” storage rows, auto-pickup unlock, and armor points โ€” each with its own cost and multiplier
  • Paginated GUI โ€” up to 54 rows of storage across 9 pages
  • Contents saved as NBT on the item itself โ€” survives restarts, drops, and transfers
  • Configurable death behavior: DROP, KEEP, or DELETE
  • ItemsAdder support โ€” use any custom item as the backpack visual (falls back to skull if unavailable)
  • Full Bedrock support via Geyser โ€” /bp opens your equipped backpack

๐ŸŽ’ Backpack Tiers

Tier Starting Rows Max Rows Shop Price
Worn Satchel 1 3 $500
Leather Backpack 2 5 $2,000
Iron Backpack 3 8 $5,000
Gold Backpack 4 12 $12,000
Diamond Backpack 5 18 $30,000
Ender Backpack 6 24 $75,000

All tiers, prices, rows, and upgrade costs are fully configurable in backpacks.yml.

๐Ÿ“ฆ Installation

  1. Drop BackpackPlugin.jar into your server's plugins/ folder
  2. Ensure Vault + an economy plugin are installed
  3. Restart the server โ€” config.yml and backpacks.yml are generated automatically
  4. Optionally install FancyNPCs for the merchant NPC and ItemsAdder for custom visuals
  5. Run /backpack reload after any config changes

๐ŸŽฎ How to Use

Opening a Backpack

Method Java Bedrock
Hold in mainhand Right-click Long-press
Hold in offhand Right-click Long-press
Worn in chest slot /bp /bp

Equipping to Chest Slot

Hold the backpack in your mainhand, then Shift + Right-click to equip it to your chestplate slot. Shift + Right-click again to unequip.

Inside the GUI

Button Function
Sort Sorts contents alphabetically
Auto-Pickup Toggles auto-pickup ON/OFF
Rename Rename your backpack (costs XP levels)
Prev / Next Navigate between storage pages

๐Ÿ›’ NPC Shop

Spawn a merchant NPC anywhere with:

/backpack spawnnpc <n>

Players browse tiers in the Buy tab and upgrade their backpacks in the Upgrade tab. The shop auto-populates from backpacks.yml โ€” no extra setup needed after adding new types.

โž• Adding Custom Backpacks

Option 1 โ€” In-game wizard (recommended):

/backpack create mythic_backpack

Answer 9 prompts in chat (display name, skull texture, ItemsAdder ID, rows, armor, upgrade costs). Clickable [Give to yourself] and [Edit fields] buttons appear when done.

Option 2 โ€” Edit backpacks.yml directly:

backpacks:
  mythic_backpack:
    display:        "&d&lMythic Backpack"
    price:          150000.0
    skull_texture:  "eyJ..."   # Base64 value from minecraft-heads.com
    itemsadder_id:  ""         # e.g. mynamespace:my_item โ€” leave blank to use skull
    initial_rows:   6
    max_rows:       36
    armor_base:     5
    upgrades:
      storage:
        enabled:           true
        max_purchases:     30
        rows_per_purchase: 1
        base_cost:         20000.0
        cost_multiplier:   1.6
      autopickup:
        enabled: true
        cost:    40000.0
      armor:
        enabled:             true
        max_purchases:       8
        points_per_purchase: 1
        base_cost:           15000.0
        cost_multiplier:     1.6

Run /backpack reload โ€” the new type instantly appears in the NPC shop.

๐Ÿ’ป Commands

Permission: backpack.admin (OP by default)

Command Description
/bp Open your equipped backpack
/backpack shop Open the NPC shop manually
/backpack give <player> <id> Give a backpack to a player
/backpack create <id> Start the in-game creation wizard
/backpack cancel Abort an active creation wizard
/backpack bpedit <id> <field> <value> Edit any field of a backpack type live
/backpack bpdelete <id> Delete a backpack type
/backpack list List all loaded backpack IDs
/backpack reload Reload config.yml and backpacks.yml
/backpack spawnnpc <n> Spawn a merchant NPC
/backpack removenpc <n> Remove a merchant NPC

โš™๏ธ Lore Placeholders

Placeholder Value
{name} Custom name (or default if not renamed)
{type} Always the original type ID
{slots_used} / {slots_total} Storage fill
{rows} Current row count
{autopickup} On / Off
{level} / {max_level} Upgrade progress
{armor} Current armor points

๐Ÿ”‘ Permissions

Permission Default Description
backpack.use Everyone Open and use backpacks
backpack.autopickup Everyone Use auto-pickup feature
backpack.bypass.blacklist false Bypass autopickup item blacklist
backpack.admin OP All admin commands

๐Ÿ”ง Requirements

  • Paper 1.21.x (Spigot not supported) ยท Java 21+
  • Vault + an economy plugin (EssentialsX, CMI, etc.)
  • FancyNPCs 2.9+ (optional, for merchant NPCs)
  • ItemsAdder 3.6+ (optional, for custom item visuals)
  • Geyser (optional, for Bedrock support โ€” works automatically)

๐Ÿ’ฌ Join our Discord for support, downloads, and updates ๐Ÿ”— More plugins by Treamhiler ๐Ÿ™ GitHub