Grand Line System

Unlisted
Bring your Mine Mine no Mi server to life with dynamic NPC merchants, a living world economy, and fully configurable events — all driven by supply, demand, and the chaos of the Grand Sea.

Grand Line System

The ultimate progression, economy and world-event expansion for Mine Mine no Mi.

Grand Line System transforms your Minecraft One Piece server into a living world where progression, politics, wars, disasters, economy and player actions shape the course of history.

Designed for long-term roleplay and survival servers, the mod introduces dynamic systems that evolve alongside your players, creating a true Grand Line experience.


🌍 World Progression

The world advances through different saga stages over real time, gradually unlocking content and increasing player power.

Features

  • Automatic saga progression
  • Devil Fruit Box restrictions based on progression
  • Devil Fruit blacklist system
  • Doriki caps per saga
  • Loyalty caps per saga
  • Haki XP disabled in East Blue
  • Haki Mastery locked until New World
  • Rayleigh NPC spawning in Grand Line and New World
  • Haki training unlocked through Rayleigh dialogue

💰 Dynamic Economy

A complete server-wide economy system built for persistent multiplayer worlds.

Features

  • Dynamic market prices
  • Prices react to world events
  • Merchant NPC with multiple shops
  • Rotating stock system
  • Market Board (/market)
  • Category-based economy balancing
  • Persistent economic data across restarts

⚔️ Events & Activities

Create an active and ever-changing world with automated and administrator-controlled events.

Included Events

  • Devil Fruit Auctions
  • Faction Raids
  • Marine Raids
  • Human Hunt
  • Colosseo Tournament
  • Reverie Summit
  • Slave Liberation
  • Player Bounties
  • Epidemics and Diseases
  • Automatic Scheduled Events

🚨 World Events

The Grand Line never stays peaceful for long.

Dynamic Conditions

  • Wars
  • Political conflicts
  • Natural disasters
  • Economic crises
  • Epidemics
  • Global instability events

More than 15 different world conditions can affect gameplay, prices, progression and player decisions.


☠️ Buster Call Integration

Full integration with Mine Mine no Mi systems.

Features

  • Golden Den Den Mushi system
  • Admiral-only activation
  • Automatic Buster Call events
  • Large-scale world consequences

🏆 Competitive Systems

Encourage player interaction and faction conflict.

Features

  • Bounty system
  • Human Hunt scoring based on Doriki
  • Tournament bracket generation
  • PvP and PvE events
  • Faction warfare systems

🔧 Technical Features

  • Persistent data storage
  • Configurable JSON systems
  • Automatic event scheduler
  • Server restart persistence
  • Designed for dedicated multiplayer servers
  • Built for Forge 1.16.5
  • Mine Mine no Mi integration

Designed for One Piece roleplay servers. Built to make every economic decision feel real.

 

The Grand Line System Team

profile avatar
  • 5
    Projects
  • 649
    Downloads

More from Shu_MkII

  • Romance Dawn project image

    Romance Dawn

    • 26
    • Modpacks

    Modpack for the One Piece Roleplay server "Romance Dawn"

    • 26
    • June 21, 2026
    • Modpacks
    • +2
  • CustomNPC x MMNM Compat project image

    CustomNPC x MMNM Compat

    • 469
    • Mods

    Let CustomNPCs use Mine Mine no Mi + Addons abilities

    • 469
    • May 30, 2026
    • Mods
  • Item Limiter project image

    Item Limiter

    • 12
    • Mods

    A server-side Forge 1.16.5 mod that enforces configurable inventory limits — by quantity, conditional rules, or exclusive item groups — dropping any excess items on the ground when a player exceeds them.

    • 12
    • May 26, 2026
    • Mods
    • +1
  • Romance Dawn project image

    Romance Dawn

    • 26
    • Modpacks

    Modpack for the One Piece Roleplay server "Romance Dawn"

    • 26
    • June 21, 2026
    • Modpacks
    • +2
  • CustomNPC x MMNM Compat project image

    CustomNPC x MMNM Compat

    • 469
    • Mods

    Let CustomNPCs use Mine Mine no Mi + Addons abilities

    • 469
    • May 30, 2026
    • Mods
  • Item Limiter project image

    Item Limiter

    • 12
    • Mods

    A server-side Forge 1.16.5 mod that enforces configurable inventory limits — by quantity, conditional rules, or exclusive item groups — dropping any excess items on the ground when a player exceeds them.

    • 12
    • May 26, 2026
    • Mods
    • +1