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Steam app 3525540 · updated 12 Sep 2026, 22:59 UTC

Lunarium Demo

Lunarium is an atmospheric fantasy A-RPG. Play as Ave, a light-armored knight, who teams up with Lune, a mysterious Starfarer. Together, they journey to save a dying world, engaging in challenging battles to retrieve the lost glow of the stars and forsaken memories, unveiling cosmic secrets.

Lunarium Demo Steam header artwork
月相仪Lunarium月相仪Lunarium
3playing now
1024-hour peak
24all-time peak
2average, last 30 days

The last 30 days

−1.2Gain−31.54%% gain10Peak

14 hourly samples, with the daily peak drawn over them. Weekends are shaded.

03581111 Sep12 SepFriday 11 September 20265 peakSaturday 12 September 202610 peak
Daily peakEvery hourly sample

All time

20 months, February 2025 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

06131926Feb 2025May 2025Aug 2025Nov 2025Feb 2026May 2026Aug 2026February 202524 monthly peakMarch 202524 monthly peakApril 20251 monthly peakMay 20250 monthly peakJune 20251 monthly peakJuly 20250 monthly peakAugust 20257 monthly peakSeptember 20254 monthly peakOctober 20251 monthly peakNovember 20253 monthly peakDecember 20252 monthly peakJanuary 20262 monthly peakFebruary 20262 monthly peakMarch 20260 monthly peakApril 20263 monthly peakMay 20261 monthly peakJune 20260 monthly peakJuly 20260 monthly peakAugust 20260 monthly peakSeptember 202610 monthly peak
Monthly peak

The last four months

Show:

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

035811July 2026August 2026September 2026October 2026July 20260 peak — daily detail belowAugust 20260 peak — daily detail belowSeptember 202610 peak — daily detail below
Monthly peakHas finer data

July 2026

6 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

0123403 Jul15 Jul17 Jul24 Jul29 Jul30 JulFriday 03 July 20260 peakWednesday 15 July 20260 peakFriday 17 July 20260 peakFriday 24 July 20260 peakWednesday 29 July 20260 peakThursday 30 July 20260 peak

August 2026

8 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

0123403 Aug07 Aug10 Aug15 Aug17 Aug25 Aug28 Aug30 AugMonday 03 August 20260 peakFriday 07 August 20260 peakMonday 10 August 20260 peakSaturday 15 August 20260 peakMonday 17 August 20260 peakTuesday 25 August 20260 peakFriday 28 August 20260 peakSunday 30 August 20260 peak

September 2026

4 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

03581102 Sep06 Sep11 Sep12 SepWednesday 02 September 20260 peakSunday 06 September 20260 peakFriday 11 September 20265 peakSaturday 12 September 202610 peak

October 2026

Lunarium Demo was released on 15 Feb, 2025.

Not out yet.There is nothing to draw for this month.
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Free to playUpdated 12 Sep 2026, 22:59 UTC
App ID
3525540
Last updated
09 Sep 2026 build 25207537
Product type
Demo
Developer
月相仪Lunarium
Publisher
月相仪Lunarium
Release date
15 Feb, 2025
Platforms
Windows
Download size
2.37 GB
Install size
2.88 GB
Genres
Action, Adventure, Indie, RPG
Game modes
Single-player
Controller support
Full
Metacritic
81

Features & support

Steam features

Game demo

Controllers & input

Full controller supportGamepad Recommended

Accessibility

Popular tags

Action RPGActionAdventureExplorationIsometricHand-drawnTop-DownCartoonSouls-likeRPGStylizedHidden ObjectAction-AdventureSwordplayAtmosphericCartoonySingleplayerCombatIndieDungeon Crawler
About this gameFull description from Steam
Lunarium At the bottom, the Sea of Chaos, the birthplace of bubble worlds, where countless bubbles rise, gradually giving life; At the top, above the Veil of Stars, is the realm where "God" and Childrens dwell, with the glow of stars illuminating the bubbles; Between these, bubbles float upwards quietly and slowly. Yet, bubbles rising from the sea can never cross the veil to become eternal. They are destined to burst eventually, their protective water film becoming lighter and then—pop. They shatter, destroyed, with all debris falling back into the sea, merging into the chaos, awaiting rebirth in a new cycle. Play as Ave, a light-armored knight. Meet a girl with light flaxen hair and embark on a journey beyond reality to save a world on the brink of bursting. Gameplay Play as Ave, journey together with Lune. Fight side-by-side, collaborate seamlessly for smooth, coordinated attacks. Combat inspired by classic games, featuring strategic maneuvers. Parrying and countering at critical moments to turn the tide of battle. On different battle situations, promptly seek assistance from Lune, cleverly employ distinct skills to prevail. Collect threads of hope throughout your journey to boost their strength. Learn new skills and magic, discover new combat strategies. At the end of each leg of the journey, you will face intimidating enemies. Defeat them to advance. Explore intricately structured levels, enhanced by an attractive art style that creates an atmospheric experience. Hand-crafted animations, vividly showcasing the personalities and charm of the characters. Wander through distinct realms: old shrine that no longer visited, ruins of a shattered kingdom, and churches shrouded in dark mist. Record observations and experiences in the notebook carried on your journey... The world and the cosmos are wondrous, and as you gather remnants among the stars, you may uncover even more secrets. Enemies of various forms but equal danger lurk within the remnants of the world, a reminder to always be cautious during your adventure. Memory, self, and meaning. Under layers of intertwining narratives, the world and its characters together tell a tale of both sorrow and resolute. "Our journey begins with parting, and perhaps it will also face parting in the end. The hardships along the way will surpass your understanding and imagination... You might even feel pain because of this." "Even so, will you still come with me?" Demo includes content related to the prologue and main storyline of the game
Content & age ratings1 regional rating

Regional ratings

DEJUSlViolência fantasiosa
System requirementsMinimum and recommended hardware

Minimum

Minimum: OS: Windows 10/11 Processor: Intel i5 Quad-Core, 2.7 GHz Memory: 8 GB RAM Graphics: GTX 660 / RX 460 Storage: 5 GB available space

Recommended

Recommended: OS: Windows 10/11 Processor: Intel i5 Quad-Core, 3 GHz Memory: 8 GB RAM Graphics: GTX 1080 Ti / RX Vega 64 Storage: 5 GB available space
Supported languages5 languages
LanguageFull audio
Simplified Chinese
English
Japanese
Traditional Chinese
Korean

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

No announcements. Nothing has been posted about this game on Steam.

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