Player Marketplace

Marketplace is a player-to-player market for Minecraft with listings, a coin wallet, fees, expiration, an in-game mailbox, and optional daily / weekly quests.

Features

• Buy / Sell / Mail tabs in a dedicated market GUI
• List items by unit price and quantity (merge-friendly listings)
• Search, price range, rarity filter, sorting, and pagination
• Configurable placement and sale fees
• Listings expire and items are returned by mail
• Unclaimed mail is permanently deleted after a configurable number of days (default 30)
• Built-in coin wallet (starting balance, player transfers, optional passive income)
• Daily / weekly quests with JSON templates, progress tracking, and coin / item / command rewards (can be fully disabled in config)
• Item blacklist (ids or tags)
• Self-purchase disabled
• Operators can add admin shop listings with unlimited stock, or limited stock that restocks every X hours or days
• Anyone with OP level 3+ can Shift+click any listing in the GUI to cancel it
• Languages: English, Czech

Requirements

• Minecraft 1.21.1
• NeoForge 21.1.x

How to use

• Open the market with keybind (default O) or /marketplace / /market
• Open quests with keybind (default H) or /marketplace quests
• Buy: LMB = choose amount, RMB = buy 1 → item goes to Mail
• Sell: Create deal → pick item → set unit price & quantity → pay placement fee
• Mail: click a letter to claim the item (stays if inventory is full). Unclaimed mail is deleted after the configured number of days
• Quests: complete objectives, then claim rewards in the quest GUI (or enable auto-claim in config)

Commands

Aliases: /marketplace, /market, /coins

Players

• /marketplace – open market
• /marketplace quests – open quests
• /coins – your balance
• /coins send <player> <amount> – send coins

Operators (permission 3+)

• /marketplace open <player> – open market for a player
• /marketplace clearlistings <player> – remove all of a player’s active listings (items returned by mail, works offline)
• /marketplace quests reload – reload quest JSON templates
• /coins <player> – view balance
• /coins add <player> <amount>
• /coins set <player> <amount>
• /marketplace admin create <price> – create an unlimited admin listing from the held item (no expiration)
• /marketplace admin remove – remove the matching unlimited admin listing for the held item
• /marketplace admin restock create <price> <quantity> <period> – create a restock admin listing (example: 5h or 5d)
• /marketplace admin restock remove – remove the matching restock admin listing for the held item

Integrations

• API for other mods – Add Marketplace as a mod dependency, then call cz.marketplace.api.MarketplaceAPI from server-side code to work with player coin balances:
  • getBalance(player) or getBalance(server, uuid) – read balance
  • setBalance(server, uuid, amount) – set exact balance
  • deposit(server, uuid, amount) – add coins
  • withdraw(server, uuid, amount) – remove coins (returns false if not enough)
  • formatBalance(amount) / formatBalanceCompact(amount) – format for display
• TAB (optional, soft) – placeholders when TAB is installed:
  • %marketplace_balance%
  • %marketplace_balance_short%