Lunarium World & Walkthrough Collection
Forgotten Forest, Ruined Castle, Dreamlike Archipelago — maps, bosses, endings, and demo routes.
Lunarium’s campaign spans three major hand-drawn regions — the Forgotten Forest (tutorial temple and village hub), the vertical Ruined Castle (highest combat density), and the Dreamlike Archipelago tied to the setting’s oldest cosmic secrets. Two story endings branch from choices made across Ave and Lune’s journey through memory, identity, and a collapsing homeland. This collection hub gathers every exploration, boss, and narrative guide so you can plan routes, prepare for elite encounters, and understand ending requirements without spoilers for every beat.
The game released July 29, 2026 on Steam and Epic Games Store. Preview builds at PAX East 2026 and the public Steam demo (App ID 3525540) covered a second-chapter slice — retail expands all three regions with full story resolution.
Exploration guides
World Map
Regional overview with recommended level thresholds, shortcut placement, bench locations, and cross-region travel notes. The Ruined Castle’s verticality punishes players who enter under-leveled — this guide defines when to leave the Forest and when to return for optional content.
Boss Guide
Strategies for ancient golems, mutated creatures, elite knights, and chapter-ending encounters. Consolidates PAX East 2026 hands-on notes about the demo’s tough finale boss, universal prep checklists, Resonance phase management, and region-specific failure causes. No fictional boss names — only patterns supported by previews and developer materials.
Endings Guide
Lunarium confirms two distinct story endings. This guide traces decision points, bond progression gates, and route planning without listing every story flag. Read before the final chapter if you want guidance; avoid entirely if you prefer blind discovery.
Demo Walkthrough
Maps the playable demo slice developers showed at PAX East and community playtests — shortcut placement, second-chapter scope, and what carries over mentally to the full release. Useful even post-launch for players who skipped the demo and want context on preview-tested boss patterns.
Recommended region order
| Region | Focus | Prep guides |
|---|---|---|
| Forgotten Forest | Tutorial combat, Temple intro, first Embroideries | Getting Started, Combat Guides |
| Ruined Castle | Vertical arenas, elite density, major bosses | Build Progression, Boss Guide |
| Dreamlike Archipelago | Puzzle gates, secret lore, finale branches | Resonance System, Endings Guide |
Return to the Temple between region pushes. Bench conversations advance Ave and Lune’s bond — narrative context for Story and Lore and ending routes.
Boss preparation checklist
Before any major fight linked from this collection:
- Full Prayers from nearest bench (Items & Materials)
- Boss Cloak preset with weaken Embroideries (Build Progression)
- Comfortable parry binding (Controls)
- Lune weaken skills allocated (Skill Tree Guide)
- Temple sword tier upgraded if materials allow (Temple Upgrades)
Story and characters
World exploration connects directly to Lunarium’s dual-protagonist narrative:
- Ave guide — sword knight backstory and combat role
- Lune guide — Starfarer magic and environmental solutions
- Story and lore — setting, themes, and pre-launch narrative context
Director Jixiang described Lunarium as balancing “narrative depth with challenging and dynamic combat encounters” — allocate time for Temple quiet moments between combat spikes.
Demo versus full game
The Steam demo (App ID 3525540) may retire or change post-launch. See Demo info for current availability. Demo-tested patterns — especially the PAX East finale boss — may recycle in retail with tuned HP and phase density. The Demo Walkthrough documents preview scope either way.
Post-launch updates
New regions, boss tuning, or ending requirement clarifications may arrive in patches. Track changes on Patch notes and the Updates hub.
Related collections
- Combat Guides — defensive fundamentals for boss rooms
- Build Progression — Embroidery and Temple prep
- Guides hub — complete index
Frequently Asked Questions
Quick answers to the most common questions.
How many regions are in Lunarium?
Three major areas: Forgotten Forest, Ruined Castle, and Dreamlike Archipelago. The world map guide details each.
How many endings does Lunarium have?
Two confirmed story endings. The endings guide explains route planning without heavy spoilers.
Which boss guide covers the demo finale?
The Boss Guide includes a section on the PAX East 2026 demo finale based on hands-on previews.
Should I finish the Forest before the Castle?
Yes. The world map guide recommends Forgotten Forest completion thresholds before Ruined Castle vertical sections.