Swell’s Player Driven Marketplace + Progression Economy

NeoForge · Multiplayer · Beta Testing


Overview

A fully player-driven marketplace designed for large modpacks, with native support for custom and modded items.
Players buy and sell freely, setting prices through real supply and demand rather than admin-controlled shops.

Built with ATM10-scale modpacks in mind, the system is designed to remain stable and usable from early game through late-game automation.

🧮 Player-Driven Economy

• No admin shops
• No fixed prices
• Players create, compete, and shape the market

📦 Full Custom Item Support

• Works with all modded items
• Enchantments, NBT, and modifiers fully preserved
• Designed for large, content-heavy modpacks

📈 Progression-Aware Design

• Economy scales naturally with player progression
• Prevents early-game inflation and late-game abuse
• Suitable for long-running SMP worlds

🧱 Large Modpack Friendly

• Designed for packs like ATM-scale modpacks
• Handles thousands of unique items without special configuration

Design Philosophy

The goal is to create a marketplace that feels native to modded Minecraft, where the economy grows naturally alongside player progression instead of being manually controlled.

💳 Credit-Based Economy

The marketplace operates on a credit-based system rather than direct item-for-item trading.
Credits act as a neutral medium of exchange, allowing prices to form organically based on real player behavior.

• Credits are earned through gameplay and market activity
• Players decide item value — not admins or fixed tables
• Credits circulate continuously rather than being injected arbitrarily

This creates a stable foundation for a long-running, player-driven economy.

⚙️ Dynamic Credit Scaling (Mob Payouts)

To support large modpacks and long-term SMP worlds, mob-related credit generation uses a dynamic scaling algorithm rather than fixed rewards.

Key design goals:

• Prevent early-game credit inflation
• Reward progression without breaking the economy
• Adapt automatically to modpack difficulty and server scale

The algorithm considers multiple factors at runtime, such as:

• Mob difficulty and rarity
• Health, damage, and special abilities
• Environmental danger (dimensions, biomes, structures)
• Server progression stage and average player power

As players advance and face stronger challenges, credit payouts scale accordingly — without requiring manual tuning by server staff.

Early-game mobs provide modest rewards, while late-game or high-risk encounters yield proportionally higher payouts.

🧠 Economy That Learns and Adapts

Because payouts are dynamic rather than fixed:

• Modpacks with custom mobs remain balanced
• New content introduced mid-playthrough does not destabilize the economy
• Long-running servers avoid runaway inflation

Admins define rules and limits, not prices or rewards.

The system is designed to observe progression and respond, keeping the economy healthy over time while remaining fully player-driven.

The goal is to create a marketplace that feels native to modded Minecraft:

• Players earn, trade, and compete naturally
• Prices adapt over time instead of being manually tuned
• The economy grows with the server rather than breaking progression

Admins observe and protect, not micromanage.

Intended Use

• Survival Multiplayer (SMP)
• Economy-focused servers
• Large modpacks with extensive custom items
• Servers that want a hands-off, player-controlled market

2️⃣ Access the Marketplace

• Open your inventory and click the Marketplace icon
• Browse active listings or create your own

3️⃣ Listing Items

• Deposit items from your inventory
• Set your own price using market awareness tools
• Supports modded items, NBT data, enchantments, and custom components

4️⃣ Buying Items

• Purchase directly from the marketplace
• Buy from multiple sellers in one transaction
• Items are delivered instantly or via your Market Inbox

5️⃣ Live Trading

• Start a live trade session with another player
• Lock offers and negotiate safely
• Optional coin flip feature for high-risk trades

6️⃣ Collecting Earnings

• Sold items generate credits delivered to your Market Inbox
• Earnings can be collected even while offline

/credits add <player> <amount>

Requires OP

Grants marketplace credits directly to a player.

Use cases:

• Admin rewards
• Economy balancing
• Testing and debugging

/market purge

Requires OP

Clears marketplace data for online players.

⚠️ Warning:
This command is destructive and intended for:

• Development & testing
• Debugging
• Resetting a broken or misconfigured market

All actions are logged.

The following systems are planned to improve stability, usability, and long-term SMP health:

• Silent, server-side transaction logging
• Safe market maintenance tools
• Scalable browsing for large modpacks
• Improved listing management
• Clear transaction feedback
• Exploit and abuse pattern detection (no auto-bans)

📌 A visual roadmap graphic will be added here.

Compatibility

• Loader: NeoForge 1.21.1.215 | NeoForge/Forge 1.20.1
• Minecraft: ATM10-aligned version + current NeoForge
• Multiplayer: Fully supported

Getting Started

1️⃣ Install the Mod

• Install NeoForge for your Minecraft version
• Place the mod .jar into both:
  • the client /mods folder
  • the server /mods folder
• Launch the game and/or server

⚠️ This mod is required on both client and server.

Status

• Beta Release: v1.3
• Actively maintained
• Feedback-driven development
• Beta testing ongoing

Feedback & Community

If you’re testing, balancing, or stress-testing the system, feedback is welcome:

💬 Discord: https://discord.gg/U3kU8zhTNd
📧 Email: [email protected]
Subject: ATTN: Marketplace Mod

Original Work Statement

Swell’s MarketPlace is an original mod developed from scratch.
No code, assets, textures, UI elements, or resources were copied or derived from any other mod or project.