ModsJava
⭐ Emerald Economy ⚖️ | Real Market Economics, Dynamic Pricing & Anti-Inflation Tax
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on SpigotPlayers on most servers figure out the economy fast. Emerald farms print infinite money, prices never change, and the currency eventually means nothing. EmeraldEconomy fixes that by treating the in-game market like an actual market.
Prices rise when demand is high and fall when supply floods in. Every trade shaves off a small tax that disappears entirely, nobody receives it, it's just gone. The longer players farm and convert, the less the server pays for each emerald. It self-corrects without you touching a thing.
- Supply & Demand Pricing - Buy and sell prices shift based on real player activity. EWMA smoothing keeps swings gradual so one bulk trade doesn't crash the market
- Built-in Money Sink - Every transaction removes a cut from the economy (5% default). That money is destroyed, not redistributed, keeps inflation in check long-term
- Resource Depletion - The more emeralds converted server-wide, the lower the buy price drops. Recovers on its own over time (default: 1 hour)
- Tax Groups - Different ranks pay different rates. Citizens, VIP, VIP+ each get their own rate via permission nodes; the lowest matching rate always wins
- Anti-Manipulation - Single trades can only move prices so much. Pair that with per-player cooldowns and a 20 trades/min rate cap and the market stays fair
- Transparent GUI - Players see the exact price, tax, and final total before committing. No surprises. Fully customizable via menu.yml
- Custom Amounts - Beyond the 1 and 64 preset buttons, players can type any number in chat
- Fill Inventory - One button calculates exactly how many emeralds fit and shows the full cost upfront
- Placeholders - Prices, tax previews, player stats, affordability checks, market volume, and currency info
- Three Storage Options - YAML, SQLite (default), MySQL
- English & Indonesian - Both language files included, every message editable
- GeyserMC Support - Bedrock players use the GUI without issues
- Transaction Logs - Full audit trail with timestamps, player UUIDs, amounts, and a unique ID per trade
- Developer API - Read prices and trigger transactions from external plugins
- Paper 1.21+
- Java 21
- Vault + an economy plugin (EssentialsX)
- Optional: PlaceholderAPI, GeyserMC
- Install Vault and an economy plugin
- Drop the jar into /plugins
- Restart, configs generate automatically
- Done. Players open the converter with /ec or /emerald
Code (Text):
/ec (aliases: /emerald) Open the converter GUI
/ecadmin reload Reload all configs
/ecadmin info Show live prices and market stats
/ecadmin stats [player] View a player's conversion history
/ecadmin setprice <buy|sell> <amount> Override the base price
Code (Text):
emeraldeconomy.use Open the converter (default: everyone)
emeraldeconomy.admin Admin commands (default: OP)
emeraldeconomy.bypass.cooldown Skip trade cooldown (default: OP)
emeraldeconomy.group.<name> Assign player to a tax group
Spoiler: Click to expand
Prices
Tax
Buy Previews
Sell Previews
Player
Affordability
Market & Currency
Code (Text):
%emeraldeconomy_price_buy%
%emeraldeconomy_price_sell%
%emeraldeconomy_base_buy_price%
%emeraldeconomy_base_sell_price%
%emeraldeconomy_stack_buy_value%
%emeraldeconomy_stack_sell_value%
%emeraldeconomy_price_sell%
%emeraldeconomy_base_buy_price%
%emeraldeconomy_base_sell_price%
%emeraldeconomy_stack_buy_value%
%emeraldeconomy_stack_sell_value%
Code (Text):
%emeraldeconomy_transaction_tax_rate%
%emeraldeconomy_player_tax_rate%
%emeraldeconomy_player_tax_group%
%emeraldeconomy_player_tax_rate%
%emeraldeconomy_player_tax_group%
Code (Text):
%emeraldeconomy_buy_1_cost%
%emeraldeconomy_buy_1_tax%
%emeraldeconomy_buy_64_cost%
%emeraldeconomy_buy_64_tax%
%emeraldeconomy_inventory_buy_value%
%emeraldeconomy_inventory_buy_value_with_tax%
%emeraldeconomy_inventory_buy_tax%
%emeraldeconomy_buy_1_tax%
%emeraldeconomy_buy_64_cost%
%emeraldeconomy_buy_64_tax%
%emeraldeconomy_inventory_buy_value%
%emeraldeconomy_inventory_buy_value_with_tax%
%emeraldeconomy_inventory_buy_tax%
Code (Text):
%emeraldeconomy_sell_1_value%
%emeraldeconomy_sell_1_tax%
%emeraldeconomy_sell_64_value%
%emeraldeconomy_sell_64_tax%
%emeraldeconomy_sell_all_value%
%emeraldeconomy_sell_all_tax%
%emeraldeconomy_sell_all_count%
%emeraldeconomy_sell_1_tax%
%emeraldeconomy_sell_64_value%
%emeraldeconomy_sell_64_tax%
%emeraldeconomy_sell_all_value%
%emeraldeconomy_sell_all_tax%
%emeraldeconomy_sell_all_count%
Code (Text):
%emeraldeconomy_player_emeralds%
%emeraldeconomy_all_sell_value%
%emeraldeconomy_total_converted%
%emeraldeconomy_inventory_buy_space%
%emeraldeconomy_all_sell_value%
%emeraldeconomy_total_converted%
%emeraldeconomy_inventory_buy_space%
Code (Text):
%emeraldeconomy_can_afford_1_emerald%
%emeraldeconomy_can_afford_64_emeralds%
%emeraldeconomy_can_afford_inventory_fill%
%emeraldeconomy_has_1_emerald%
%emeraldeconomy_has_64_emeralds%
%emeraldeconomy_has_any_emeralds%
%emeraldeconomy_can_afford_64_emeralds%
%emeraldeconomy_can_afford_inventory_fill%
%emeraldeconomy_has_1_emerald%
%emeraldeconomy_has_64_emeralds%
%emeraldeconomy_has_any_emeralds%
Code (Text):
%emeraldeconomy_depletion_factor%
%emeraldeconomy_total_emeralds_converted%
%emeraldeconomy_recent_volume%
%emeraldeconomy_currency_name%
%emeraldeconomy_currency_symbol%
%emeraldeconomy_total_emeralds_converted%
%emeraldeconomy_recent_volume%
%emeraldeconomy_currency_name%
%emeraldeconomy_currency_symbol%
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For questions and bug reports, reach out on Discord: craftepxly
For questions and bug reports, reach out on Discord: craftepxly
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Spigot — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
⭐ Emerald Economy ⚖️ | Real Market Economics, Dynamic Pricing & Anti-Inflation Tax is a free Minecraft Java mod. Compatible with Minecraft 1.21. Downloaded 30 times (via Spigot). Download it and open it directly in the game.