CartiMarket- Minecraft Economy Mod

CartiMarket brings a living economy to Minecraft: dynamic prices, connected resource markets, fixed trade tiers, and safe player-to-player bartering—all in a simple in-game shop.

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Inspiration

I was making a Forge 1.20.1 Minecraft modpack for me and my friends to play on my server and i was looking for some straightforward market/economy mod. Turns out there was no clean looking and user friendly economy mod, for this Minecraft version at least. So I naturally started creating one with Codex from scratch and ambition got to me so i decided to also include real economic behaviour in the market.

What it does

CartiMarket is a server-authoritative economy and trading mod for Minecraft 1.20.1 Forge.

It adds a full in-game market where players can buy and sell items only in carefully balanced quantities. Prices are dynamic: when an item is sold heavily, its price can fall; when it is bought, its price can rise. Many crafted items also respond to the prices of their materials, creating a connected economy where resources such as wood, iron, leather, crops, ores, and rare materials matter.

Features include:

A searchable in-game market with categories, live prices, balance display, and buy/sell controls

Hundreds of priced vanilla items plus selected supported modded items

Dynamic supply-and-demand pricing for every market item

Logical material dependencies for crafted and advanced items

Fixed trade tiers, so items can only be bought or sold in their intended quantities

A player-to-player barter board for item-for-item trading

Listings and offers with up to four item stacks per side

Support for modded items and full stack quantities in player trades

Safe escrow, accepting, rejecting, withdrawing, and pending-delivery handling

Player trades are fully separate from the market: they use no money and do not change prices

CartiMarket is designed for survival servers that want mining, farming, crafting, exploration, and player trading to all have a meaningful place in the economy.

How we built it

I built it with Codex 5.6 Terra on high settings, since Minecraft is coded in Java this was the language which was used for the mod.

Challenges we ran into

There were some challenges but too little for a project this perfect, most of the challenges were UI misalignment and sizing issues but also some buttons not working, pretty much just front-end issues.

Accomplishments that we're proud of

I'm proud of this mod because it proved to me that I didn't have to be an exquisite programmer to make my creative visions come true.

What we learned

I learned how to better prompt for the best result and also I learned some simple economy because as I mentioned earlier the mod uses real economic behaviour.

What's next for CartiMarket- Minecraft Economy Mod

I'm currently working on a customizable Minecraft market generator website for multiple Minecraft versions.

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