🗺 Expedition Core

The adventure/world library behind Majestic: jigsaw structure helpers and a phased boss-encounter framework. Adds no content on its own.

✨ Overview

Expedition Core is the shared adventure engine of the Majestic ecosystem. It ships no dimensions, structures or bosses of its own — it gives other mods (starting with Majestic itself) the frameworks to build them on top of: jigsaw structure-pool utilities, a phased boss-encounter state machine with arena locking and multiplayer scaling, loot-table injection, and a GeckoLib render base for complex mobs. If you were told to install this mod, it's because another mod on your instance depends on it — most likely Majestic. It is independent of the magic library (Astral Core) and reusable by any mod.

🎯 Features

🏗 Structures

Helpers to build and register jigsaw StructureTemplatePools from a piece/weight map, spacing/separation placement settings, and a controlled piece-spawn callback registry for populating generated rooms with mobs or loot.

💀 Boss Encounters

A data-attachment-backed state machine for any Mob: health-threshold phases with callbacks, a temporary arena lock with an escape hook, a boss-bar wrapper, duplicate-and-distribute loot rolling, looped per-player music, and a configurable multiplayer health/damage scaling factor.

🏖 GeckoLib Render Base

A thin GeoBossEntity / GeoBossRenderer base to cut the usual GeckoLib boilerplate for boss and complex-mob rendering.

🏷 Loot & Advancements

Inject additional pools into existing vanilla or structure loot tables, gated by a datapack-load-time condition, plus simple grant/check hooks for advancements from server code.

🧱 Mod Structure

📋 Requirements

🎮 How to Use

1. Install as a dependency of another mod that requires it (e.g. Majestic), on both client and server.
2. Install GeckoLib alongside it.
3. On its own it adds no items, blocks, structures or mobs — the consumer mod calls its API to build its own content.

Early development. Expedition Core is still pre-release (0.0.0-beta.x); the public API may change between betas.

🙏 Credits

Developed by Stalking Dragons as part of the Majestic ecosystem, alongside Astral Core, Almanac Core and Majestic itself.

https://codex.skdragons.com/
Codex Stalking Dragons — Minecraft Modding