CogTrade

CogTrade is a Fabric economy and trading mod for Minecraft 1.20.1, built for survival servers and automation-focused worlds.

Most economy mods give you a command and a menu. CogTrade gives you a physical, world-integrated trading system — one where stock comes from real chests, prices are set by real players, and the economy grows from actual gameplay.

⚠️ Alpha Release — Core systems are playable, but bugs and breaking changes may still occur. Back up your world before installing or updating.

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How It Works

Players place a Trade Depot and connect it to one or more chests. The depot reads real inventory — no fake stock, no abstract numbers. Then they place a Trade Post, which customers right-click to browse and buy available items. Everything is physical, visible, and part of the world.

The Server Market sits alongside this as a central admin-controlled marketplace — useful for seeding the economy with base-level items and giving players a reference point for pricing.

Players can also trade directly with each other in real time — offering items and coins through a synchronized live trade interface — or use the BookTrade system built into the in-game book GUI.

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Features

📖 CogTrade Book GUI

• Press L or right-click a Market Block to open the unified CogTrade book
• All major interfaces in one place: Market · Depot · Trade Post · Trade
• Book-themed design with consistent scaling across all screen sizes and resolutions

🏪 Server Market

• Buy and sell items through a clean, full-featured market interface
• Search bar, category filters, and sorting (name / price / stock)
• Favorites system and recently viewed items
• Transaction history
• Admin-controlled catalog — add, remove, and price items via commands

🏗️ Player Shop System

• Trade Depot — connects to multiple chests, reads real inventory as stock
• Trade Post — customer-facing shop block, right-click to browse
• Physical stock system: if it's not in the chest, it can't be sold
• Floating 3D name labels above trade blocks
• Category tags on listings: Misc · Block · Food · Tool · Material
• Only the owner can break their own blocks

🤝 Direct Player Trading

• Send a live trade request to any online player with /trade offer <player>
• Synchronized real-time GUI — both players see the same offer state instantly
• Each side offers up to 9 item slots and a coin amount
• Dual-confirmation system — trade only completes when both players press READY
• Changing any offer automatically resets ready states (prevents last-second swaps)
• Left-click to move a full stack, right-click for a single item, middle-click for a custom quantity
• Items are always returned safely — offline players receive theirs on next login
• All completed trades are logged to the database

🤜🤛 BookTrade

• Trade items with another player directly from within the Book GUI
• Real-time offer / accept / reject with server-side validation
• No commands needed — everything in one interface

💰 Economy

• Per-player balance with configurable starting funds
• Daily earnings and spending tracker
• Animated balance HUD on screen
• /balance and /pay commands
• 100+ items with built-in reference prices (minerals, Nether/End materials, food, tools, armor) to help players set fair rates

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Commands

Player Commands

Command	Description
/market	Open the server market
/market locate	Highlight the nearest Market Block
/market history	View your transaction history
/balance	Check your current balance
/pay <player> <amount>	Send coins to another player
/trade offer <player>	Send a direct trade request
/trade accept	Accept an incoming trade request
/trade reject	Reject an incoming trade request
/trade cancel	Cancel your active trade session

Operator Commands (level 2)

Command	Description
/ctadmin balance add|remove|set|check	Manage player balances
/ctadmin market add|remove|edit|price|stock	Manage the server market catalog
/ctadmin config	View and edit mod configuration
/placemarket	Place a Server Market block

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Singleplayer & Multiplayer

In Singleplayer

Use the server market as a personal economy layer — trade with the world's item catalog, track your spending, and manage your own shop system.

In Multiplayer

CogTrade becomes a full player economy framework:

• Players supply their own stock from real storage
• Sellers compete on price across different categories
• The Trade Post encourages players to visit each other's bases
• Players can trade directly without needing a shop
• Ideal for SMP servers and automation-heavy modpacks

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Design Philosophy

Economy should come from real storage, real stock, and real player activity.

❌ What CogTrade avoids	✅ What CogTrade does instead
Fake infinite shop stock	Stock comes from real chests
Abstract markets disconnected from the world	Physical depot and post blocks in the world
Command-only trade systems	Live synchronized GUI for both players
Selling items you don't own	No stock = no sale

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Planned Features

The current Alpha focuses on the core trading foundation. Planned additions:

Feature	Category
Player buy orders	Economy
Physical coin item	Economy
ATM block	Economy
Taxes and rent system	Economy
Chunk claim integration	World
Auctions	Trading
Quests and professions	Progression
Guild system	Social
Deeper Create mod integration	Technical
CogDungeon expansion content	Content

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Technical

• SQLite database, stored per world — no external setup required
• SQLite driver bundled inside the JAR
• Fabric 1.20.1 — requires Fabric API

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Alpha Notice

This project is in active Alpha development.

• Core features are playable and functional
• UI and balance values may change between versions
• Database schema changes may require a reset on major updates
• Feedback and bug reports are extremely welcome

If something breaks, please report it — that's how this mod gets better.