Numismatic Coin Addon

The full English changelog is available on GitHub.
The full French changelog is available on our Discord.

Numismatic Coin Addon is a lightweight addon for Numismatic Overhaul that adds new Minecraft-inspired coins designed for economy-based servers.

The mod expands the existing currency system with Emerald and Diamond coins, giving servers more options for shops, player trading, large balances and custom economies.

The goal is simple: extend Numismatic Overhaul with additional currencies that are easy to integrate into a modded server and consistent with the Minecraft universe.

Numismatic Coin Addon does not replace Numismatic Overhaul. It keeps the original Bronze, Silver and Gold coins unchanged and adds two higher-tier coins above Gold.

Coin Values

Numismatic Overhaul already uses the following base progression:

• 100 Bronze Coins = 1 Silver Coin
• 100 Silver Coins = 1 Gold Coin

Numismatic Coin Addon continues the same 100:1 progression with two new high-tier coins:

• 100 Gold Coins = 1 Emerald Coin
• 100 Emerald Coins = 1 Diamond Coin

Full currency progression:

• 1 Silver Coin = 100 Bronze Coins
• 1 Gold Coin = 100 Silver Coins
• 1 Emerald Coin = 100 Gold Coins
• 1 Diamond Coin = 100 Emerald Coins

Internal value reference:

• 1 Emerald Coin = 1,000,000 bronze value
• 1 Diamond Coin = 100,000,000 bronze value

Emerald and Diamond coins are intended to make large amounts of money easier to store, convert, display and manage, especially on economy-based servers and modpacks.

Features

• Adds Emerald coins
• Adds Diamond coins
• Expands the Numismatic Overhaul currency system
• Adds two higher-tier coins above Gold
• Keeps the original Bronze, Silver and Gold coins unchanged
• Designed for economy servers, shops, and player trading
• Lightweight and focused addon
• Fits naturally into custom Minecraft economies
• Adds conversion commands for Gold, Emerald and Diamond coins
• Adds stacked visual models for Emerald and Diamond coins
• Adds purse display support for Emerald and Diamond values
• Adds Emerald and Diamond entries to the Numismatic Overhaul purse popup
• Supports extracting Emerald and Diamond coins directly from the purse popup
• Adds configurable Diamond Coin max stack size
• Uses textures designed to match the visual style of Numismatic Overhaul

Commands

Main command:

/nca

Alias:

/numismaticaddon

Available commands:

• /nca status
• /nca convert gold_to_emerald
• /nca convert emerald_to_gold
• /nca convert emerald_to_diamond
• /nca convert diamond_to_emerald

Configuration

The mod generates a config file at:

config/NumismaticCoinAddon/config.json

Default config:

{
  "diamondMaxStack": 21
}

The Diamond Coin max stack size can be changed in the config.

The default value is set to 21 for safer compatibility with very large currency values. Changing this value requires a full game restart.

Compatibility

• Requires Numismatic Overhaul
• Compatible with Numismatic CheesePurse
• Designed for Fabric
• Designed for modded Minecraft servers with an economy system
• Does not replace Numismatic Overhaul
• Does not modify the base Bronze, Silver or Gold coins
• Adds only new higher-tier coins and related UI support

Notes

Numismatic Coin Addon does not replace Numismatic Overhaul.
It extends it with additional coins made for servers and custom economies.

It is especially useful for servers, shops and modpacks where Gold Coins are no longer enough to comfortably represent large balances.

The addon keeps the original Numismatic Overhaul currency structure intact and simply adds Emerald and Diamond as additional high-value tiers above Gold.