Seigniorage
by Ratonimo
Seigniorage lets server owners and players create custom currencies, with coins, bills and the means to issue and move them through a server economy.
What it does
A currency is defined by a unique name, a three-letter code, a unit name and a four-by-four symbol. Each currency can be given its own denomination set, with coins and bills whose appearance can be customized. Currency Desk is the block where issuance orders are processed, so physical money items are created in a controlled way. Economy data is tracked as well, including the total issued and the total decommissioned value of each currency.
Physical money is handled with Wallets, Safes and Netherite Safes, which store and carry coins and bills between players. Player transactions run through a Voucher and Cash Register payment flow, and a Currency Desk can be placed and opened by players or staff. The mod is aimed at server tools for player-run economies, faction currencies and roleplay economies, where the value of a currency is set by the people who use it. It is published for NeoForge only, for Minecraft 1.21.1, and is released under the MIT License, though it is not open source. A server running it needs every connecting player to have it too.
Key features
Custom currencies
Create a currency with its own name, three-letter code, unit name and four-by-four symbol.
Denomination sets
Design coins and bills for each currency, with customizable appearance for every denomination.
Currency Desk orders
Issuance orders placed at the Currency Desk turn real money items into a currency under the server's control.
Wallets and safes
Wallets, Safes and Netherite Safes store and transport physical money between players.
Voucher payments
Player transactions use a Voucher and Cash Register flow, so payments pass between players in a defined way.
Economy tracking
Totals for issued and decommissioned value are recorded for each currency.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
CurrencyCraft is published for NeoForge and 1.21.1 – 1.21.4, is client and server, and is released under the MIT License, though it is not open source. RC Economy covers only 1.21.1, is client and server, and uses the MIT License as well. W-Coin is NeoForge only for 1.21.1, is client and server, and is released as All rights reserved. Coins is open source under the MIT License and also has a Fabric file, for 1.21.8, and it is server required with the client optional.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Seigniorage | NeoForge | 1.21.1 | Client and server | 2026-05-31 |
| CurrencyCraft | NeoForge | 1.21.1 – 1.21.4 | Client and server | 2025-01-21 |
| RC Economy | NeoForge | 1.21.1 | Client and server | 2026-09-03 |
| W-Coin | NeoForge | 1.21.1 | Client and server | 2025-10-07 |
| Coins | Fabric and NeoForge | 1.21.8 | Server required, client optional | 2025-09-14 |
Questions
Does Seigniorage need to be installed on both sides?
Which loader does Seigniorage use?
Can a currency be used for roleplay?
In the catalog
Seigniorage is one of 2,072 Economy mods on ModsFinder, and one of 917 Economy mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Create your own currencies, design denominations, mint coins and print bills, then use them in player-driven trade systems. Seigniorage gives servers the tools for all players to run custom economies built on player determined value.
Official listing
- Modrinth page
- modrinth.com/mod/seigniorage
- Owner
- Ratonimo
- Published
- 2026-03-31
- Updated on Modrinth
- 2026-05-31
- Facts verified
- 2026-10-15