Grand Exchange

Bring RuneScape-style trading to Minecraft 1.12.2!

Grand Exchange provides a server-wide marketplace where players can create buy and sell offers, trade anonymously, and collect completed transactions through a clean, searchable interface.

Features

RuneScape-inspired buy and sell offers
Server-wide player marketplace
Automatic price matching using price and offer age
Partial offer completion
Secure item and currency escrow
Searchable and scrollable item catalogue
Market stock browser showing combined quantities such as 591x Diamond
Listings grouped across sellers and prices
Persistent trade history and guide prices
Configurable seller tax and purchase limits
Item blacklist support
Light and dark interface themes
Dark mode enabled by default
No placeable exchange block required

Open the exchange anywhere using:

/ge
/grandexchange

Both commands are available to regular players.

Offer Slots and Permissions

Every player receives three offer slots by default. Additional slots can be unlocked individually using permission nodes:

grandexchange.slot.4
grandexchange.slot.5
grandexchange.slot.6
grandexchange.slot.7
grandexchange.slot.8

Existing offers remain available for collection if a player later loses access to a slot.

Currency

Without an economy mod, Grand Exchange uses an emerald-backed account system. Players can deposit emeralds, trade with their exchange balance, and withdraw their remaining funds.

Optional Grand Economy support is included. When Grand Economy is installed, Grand Exchange automatically uses its active currency and economy provider.

Grand Economy is entirely optional.

Trading System

Buy offers specify the maximum price a player is willing to pay. Sell offers specify the minimum price a player will accept.

Compatible offers are matched automatically:

The best available price is matched first.
Older offers take priority when prices are equal.
The older resting offer determines the final transaction price.
Buyers receive refunds when an item is purchased below their maximum price.
Items and funds remain safely held until collected or cancelled.

Seller identities and individual asking prices are not exposed in the public stock browser.

Configuration

Configuration is generated at:

config/grandexchange.cfg

Server owners can configure:

Total offer-slot capacity
Maximum offer quantity
Maximum unit price
Seller tax percentage
Grand Economy preference
Default purchase limits
Per-item purchase limits
Blacklisted items

Client theme preferences are stored separately.

Requirements

Minecraft 1.12.2
Minecraft Forge 14.23.5.2859
Java 8
Grand Economy 2.1.2 or compatible version — optional

Grand Exchange is designed for multiplayer servers but also works in single-player worlds.

GrandExchange