The Last Gyre

The crystal spheres are dying. One ship. One crew. One mission to the edge of everything.

The Campaign

System: D&D 5e | Setting: Spelljammer / Original Homebrew | Status: Pre-Launch

The crew of the Argent Threshold — the most advanced vessel ever built by the civilization of Trisurus — set out to observe the collapse of a dying crystal sphere into the cosmic phenomenon known as the Last Gyre. They were supposed to document, learn, and return.

They never came back.

Player Resources

• Spelljammer Slang and Terminology

The Ship

• Crew Roster
• How You Got Aboard
• Spelljamming Basics
• The Argent Threshold — Ship Lore
• The Argent Threshold — Mission Briefing

The Mission

• The Last Gyre

Character Creation

• Life in Trisurus

Species of Trisurus

• Aquatic Peoples
• Avian Peoples
• Celestial and Fiendish Touched
• Construct and Synthetic Peoples
• Curses and Transformations
• Dragonborn and Reptilian Peoples
• Dwarves and Stonefolk
• Elemental Peoples
• Elves
• Fey and Sylvan Peoples
• Goblinoids
• Humans
• Mammalian Peoples
• Orcs and Warborn
• Plant and Fungal Peoples
• Psionic and Esoteric Peoples
• Rare Peoples
• Shadow Peoples
• Smallfolk
• Spelljammer Peoples

Classes of Trisurus

• Artificer
• Barbarian
• Bard
• Blood Hunter
• Cleric
• Druid
• Fighter
• Gunslinger
• Illrigger
• Monk
• Monster Hunter
• Paladin
• Pugilist
• Ranger
• Rogue
• Sorcerer
• Warlock
• Wizard

Backgrounds of Trisurus

• Criminals and Shadows
• Entertainers and Specialists
• Explorers and Spacers
• Faithful and Devoted
• Frontier and Survival
• Institutional Scions
• Merchants and Crafters
• Military and Law
• Nobles and Diplomats
• Scholars and Academics
• The Scarred and Strange

Your Homeworld: Trisurus

A civilization spanning three worlds, powered by the seamless fusion of magic and technology. Ten thousand years of knowledge, culture, and ambition — and the place you may never see again.

Overview

• Trisurus Overview

Culture & Society

• Daily Life in Trisurus
• Education System
• Festivals and Holidays
• Post-Scarcity Economics
• Sports and Recreation
• The Arts
• Threshold Philosophy

Government & Factions

• Old Trisuran Traditionalists
• Refugee Integration Council
• The Consortium of Thresholds
• The Construct Rights Coalition
• The Evacuationists
• The Interventionists
• The Isolationists

Research

• The Sphere Stability Project
• The Temporal Institute

The Three Worlds

• Aelios
• Trisurus Prime
• Verdania

Locations

• Fleet Yards
• Luminar
• Machina
• Planar Gate Hub
• Sanctuary
• The Crystal Spire
• The Orbital Ring

Technology

• Communication Network
• Early Warning Network
• Knowledge Crystals
• Medical Pods
• Personal Fabricators
• Planar Gates
• Reality Anchors
• Spelljamming Helm Evolution
• Teleportation Networks

History

• The Founding
• The Golden Age
• The First Collapse
• Collapsed Spheres Registry
• Trisurus Timeline
• The Refugee Crisis

Military

• Defense Doctrine
• Fleet Command Overview
• The Fleet

Science & Magitech

• Magitech Compendium
• Scientific Principles

Refugee Cultures

• The Khelvar
• The Mirathene Diaspora
• The Sylvan Remnant

Notable Figures

• Notable Trisurus Figures
• Admiral Seris Cloudwalker
• Admiral Vex Protocol
• Director Kaelen Timebinder
• Elder Thessara Moonwhisper
• Lyra Starhaven
• Mira Brightforge
• Professor Thane Stoneshell
• Tharn Deepforge
• Tharn Swiftrunner

Universal Lore

• The Consortium of Thresholds (Universal)
• Population Guide

This wiki will grow as the campaign progresses. New locations, NPCs, factions, and lore will be revealed through play.