Game overview
Castle of Full Moon 月圆之堡
elf girls marry into a mysterious castle and reveal the horrific truth.
- Last tracked players
- 0
- All-time peak
- 1
- 24-hour change
- Unavailable
- Steam reviews
- 95.8% positive 24 reviews · via SteamSpy
Delayed observation · last tracked . Values marked unavailable are not estimated.
About this game Read the full description
Introduction
A beautiful elf girl will become the bride of the castle.
But the master is a monster.
The castle is full of mysteries,
There are switches and puzzles,
The castle not only has scary clowns chasing you,
There are also various ghosts and monsters.
You can choose to escape the castle alone,
Or choose a companion,
Or escape with all your companions,
Or live to be the bride of the castle, or even the master.
Nine endings, eight ways to escape,
And eight touching side stories.
The truth of the castle is waiting for you to unravel.
Main features
Weird game atmosphere
heart-pounding fright element
A variety of decryption arrangements
Nightmare chase battle
Nine endings of free choice
touching story
Character introduction
You
Elf beautiful girl with different eyes
A 170-year-old elf with different pupils (equivalent to a human age of 17), gentle and kind. She was considered an ominous person by her clan, and as a sacrificed bride married the cannibal lord of the Full Moon Castle. You must use your own abilities or work with your friends to escape from the Full Moon Castle and discover the truth about the Full Moon Castle and yourself in the process.
Lane
Fallen Vampire Noble Butler
Male, obsessed with age, looks like an elegant butler of the vampire clan in his 20s. A self-proclaimed master of the second generation of the castle, he believes that the heroine can help him restore the glory of the vampire clan. Although he can no longer suck blood because of the demon contract, he can usually cook top-notch delicacies, and he will not easily let go of the dust in every corner of the castle. He is a good steward with due diligence. Usually accompanied by a bat spirit, once the contract is released, it can be transformed into a bat spirit.
Antony & Luna
The wise human handsome boy and his familiar cat
Male, 18-year-old beautiful human with high intelligence quotient. He was rescued by the heroine when he was a child. Because he could understand the master's words, he avoided death and signed a demon contract to become a secretary. He doesn't like to talk, and is accompanied by a familiar cat named Luna. Because in addition to reading books, he secretly practices swordsmanship, and hopes to use human power to kill his master himself and avenge his family. Hope to build a big cat house for Luna after escaping.
Isabelle
Elf's little dancer sister
Female, 180 years old, an elf beauty who is proficient in divination, dance and music theory. The elder sister of the same family who grew up with the heroine also has abilities that are regarded as unknown by the same family, but she chooses to hide it. It seems that she did nothing to make the heroine become a bride, but in fact, she had premeditated. She is old friends with Mr. Mouse from the Castle of the Full Moon, and hopes to find a treasure called the Butterfly Ring in the Castle of the Full Moon and escape from this world with the heroine.

Ellisa
The flower fairy imprisoned in the castle
Female, age unknown. This is a high-level precious flower fairy with super magic power, which can transform into the appearance of a human. She was only deceived by the big-eyed baron's rhetoric, and was imprisoned in the Castle of the Full Moon in the form of a piranha. She needs someone to take her out of the nightmare and re-face her heart and her relationship with the Baron with Big Eyes.
Cavill
The current owner of the Castle of the Full Moon, Baron Big-Eyed
The man, the descendant of the giant-eyed clan, is said to take the appearance of a handsome human baron and sell the devil's contract to the world. On the night of the full moon, he became a prototype due to weakness. It is rumored that the true body of the giant-eyed clan is a huge and strong monster. He also seems to have an unknown side.
Mr. Mouse
This mouse has lived for hundreds of years for some reason. It has witnessed the changes of the Full Moon Castle for hundreds of years, so it is always a picture of an old man. Afraid of Lane, afraid of Luna, like to communicate with girls, and Isabella are old acquaintances.
Ghosts
The ghosts wandering in the Castle of the Full Moon will often scare you, and you can't be sure whether they are friends or enemies. They seem to have their own stories and wishes. Will you help them?
Lucas & Sherry
It is said to be the first generation owner of the Full Moon Castle, the legendary wealthy businessman and his wife.
Author's Words
This game is a Japanese horror puzzle computer game.
As my first official Steam game work,
Looking forward to your sharing, live broadcast, forwarding and valuable suggestions to the official feedback!
Unfortunately, due to my limited English ability, the English version is not yet available, please look forward to it!
Media gallery 10 screenshots · 0 videos
Screenshots
And 2 more screenshots...
Player activity
Concurrent players over the last 48 hours.
Loading player history?
Latest news
All news on Steam ↗System requirements Windows
Windows
Minimum
Minimum:- OS *: Windows 7/8/10(32)
- Processor: Intel Core2 Duo or better
- Memory: 4 GB RAM
- Graphics: DirectX 9/OpenGL 4.1 capable GPU
- Storage: 800 MB available space
- Additional Notes: 1280x768 or better Display
Recommended
Recommended:- OS *: Windows 7/8/10(64)
- Memory: 8 GB RAM
- Graphics: OpenGL ES 2.0 hardware driver support required for WebGL acceleration. (AMD Catalyst 10.9, nVidia 358.50), iOS 8.0, Android 4.4.4*
- Storage: 1 GB available space
Game details Languages, features & support
- Publisher
- starknow
- Brazilian rating
- 14
- Steam Germany rating
- 16
- Content warning
- There are slight violence and bloody elements in this game, and those with poor psychological endurance are not recommended to play.
- Features
- Single-player, Family Sharing
- Languages
- Simplified Chinese
- Support
- [email protected]
Compatibility & accessibility Steam Deck, controllers & access features
Can I Play This?
Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| Simplified Chinese | Yes | No | Yes |
Steam store page
fresh · checked 2026-09-28
PCGamingWiki technical notes
External link only; SteamIQHQ does not ingest PCGamingWiki content.
More analysis Activity patterns, updates & developer tools
Game Insights
Buy Verdict
Watch — $3.99.
Decent deal at 0% off, but might drop further. Watch for better opportunities.
▲
~14 days until next sale
Value Score
Great Value — 100th percentile.
Price-to-player ratio ranks in the 100th percentile. Priced as Market at $3.99.
▲
Market pricing tier
Genre Benchmarks
Player Count
Top 0%
Value Ratio
Top 0%
Activity Heatmap
UTC+0 (Your Timezone)
0
Peak Activity
0
Avg Activity
0
Active Hours
5%
Sample coverage
Less Active
More Active
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Sun
Sunday 0:00
No samples
No samples
Sunday 1:00
No samples
No samples
Sunday 2:00
No samples
No samples
Sunday 3:00
0 players · 1 samples
0 players · 1 samples
Sunday 4:00
No samples
No samples
Sunday 5:00
No samples
No samples
Sunday 6:00
No samples
No samples
Sunday 7:00
No samples
No samples
Sunday 8:00
No samples
No samples
Sunday 9:00
No samples
No samples
Sunday 10:00
No samples
No samples
Sunday 11:00
No samples
No samples
Sunday 12:00
No samples
No samples
Sunday 13:00
No samples
No samples
Sunday 14:00
No samples
No samples
Sunday 15:00
No samples
No samples
Sunday 16:00
No samples
No samples
Sunday 17:00
No samples
No samples
Sunday 18:00
No samples
No samples
Sunday 19:00
No samples
No samples
Sunday 20:00
No samples
No samples
Sunday 21:00
No samples
No samples
Sunday 22:00
No samples
No samples
Sunday 23:00
No samples
No samples
Mon
Monday 0:00
No samples
No samples
Monday 1:00
No samples
No samples
Monday 2:00
No samples
No samples
Monday 3:00
No samples
No samples
Monday 4:00
No samples
No samples
Monday 5:00
No samples
No samples
Monday 6:00
No samples
No samples
Monday 7:00
No samples
No samples
Monday 8:00
No samples
No samples
Monday 9:00
0 players · 1 samples
0 players · 1 samples
Monday 10:00
No samples
No samples
Monday 11:00
0 players · 1 samples
0 players · 1 samples
Monday 12:00
No samples
No samples
Monday 13:00
No samples
No samples
Monday 14:00
No samples
No samples
Monday 15:00
No samples
No samples
Monday 16:00
No samples
No samples
Monday 17:00
No samples
No samples
Monday 18:00
No samples
No samples
Monday 19:00
No samples
No samples
Monday 20:00
No samples
No samples
Monday 21:00
No samples
No samples
Monday 22:00
No samples
No samples
Monday 23:00
No samples
No samples
Tue
📍
Tuesday 0:00
No samples
No samples
Tuesday 1:00
No samples
No samples
Tuesday 2:00
No samples
No samples
Tuesday 3:00
No samples
No samples
Tuesday 4:00
No samples
No samples
Tuesday 5:00
No samples
No samples
Tuesday 6:00
No samples
No samples
Tuesday 7:00
No samples
No samples
Tuesday 8:00
No samples
No samples
Tuesday 9:00
No samples
No samples
Tuesday 10:00
No samples
No samples
Tuesday 11:00
No samples
No samples
Tuesday 12:00
No samples
No samples
Tuesday 13:00
No samples
No samples
Tuesday 14:00
0 players · 1 samples
0 players · 1 samples
Tuesday 15:00
No samples
No samples
Tuesday 16:00
No samples
No samples
Tuesday 17:00
No samples
No samples
Tuesday 18:00
No samples
No samples
Tuesday 19:00
No samples
No samples
Tuesday 20:00
No samples
No samples
Tuesday 21:00
No samples
No samples
Tuesday 22:00
No samples
No samples
Tuesday 23:00
No samples
No samples
Wed
Wednesday 0:00
No samples
No samples
Wednesday 1:00
No samples
No samples
Wednesday 2:00
No samples
No samples
Wednesday 3:00
No samples
No samples
Wednesday 4:00
No samples
No samples
Wednesday 5:00
No samples
No samples
Wednesday 6:00
No samples
No samples
Wednesday 7:00
No samples
No samples
Wednesday 8:00
No samples
No samples
Wednesday 9:00
No samples
No samples
Wednesday 10:00
No samples
No samples
Wednesday 11:00
No samples
No samples
Wednesday 12:00
No samples
No samples
Wednesday 13:00
No samples
No samples
Wednesday 14:00
No samples
No samples
Wednesday 15:00
No samples
No samples
Wednesday 16:00
No samples
No samples
Wednesday 17:00
No samples
No samples
Wednesday 18:00
No samples
No samples
Wednesday 19:00
No samples
No samples
Wednesday 20:00
No samples
No samples
Wednesday 21:00
No samples
No samples
Wednesday 22:00
No samples
No samples
Wednesday 23:00
No samples
No samples
Thu
Thursday 0:00
No samples
No samples
Thursday 1:00
No samples
No samples
Thursday 2:00
0 players · 1 samples
0 players · 1 samples
Thursday 3:00
No samples
No samples
Thursday 4:00
No samples
No samples
Thursday 5:00
No samples
No samples
Thursday 6:00
No samples
No samples
Thursday 7:00
No samples
No samples
Thursday 8:00
No samples
No samples
Thursday 9:00
No samples
No samples
Thursday 10:00
No samples
No samples
Thursday 11:00
No samples
No samples
Thursday 12:00
No samples
No samples
Thursday 13:00
No samples
No samples
Thursday 14:00
No samples
No samples
Thursday 15:00
No samples
No samples
Thursday 16:00
No samples
No samples
Thursday 17:00
No samples
No samples
Thursday 18:00
No samples
No samples
Thursday 19:00
No samples
No samples
Thursday 20:00
No samples
No samples
Thursday 21:00
No samples
No samples
Thursday 22:00
No samples
No samples
Thursday 23:00
No samples
No samples
Fri
Friday 0:00
No samples
No samples
Friday 1:00
No samples
No samples
Friday 2:00
No samples
No samples
Friday 3:00
No samples
No samples
Friday 4:00
0 players · 1 samples
0 players · 1 samples
Friday 5:00
No samples
No samples
Friday 6:00
No samples
No samples
Friday 7:00
No samples
No samples
Friday 8:00
No samples
No samples
Friday 9:00
No samples
No samples
Friday 10:00
No samples
No samples
Friday 11:00
No samples
No samples
Friday 12:00
No samples
No samples
Friday 13:00
0 players · 1 samples
0 players · 1 samples
Friday 14:00
No samples
No samples
Friday 15:00
No samples
No samples
Friday 16:00
No samples
No samples
Friday 17:00
No samples
No samples
Friday 18:00
No samples
No samples
Friday 19:00
0 players · 1 samples
0 players · 1 samples
Friday 20:00
No samples
No samples
Friday 21:00
No samples
No samples
Friday 22:00
No samples
No samples
Friday 23:00
No samples
No samples
Sat
Saturday 0:00
No samples
No samples
Saturday 1:00
No samples
No samples
Saturday 2:00
No samples
No samples
Saturday 3:00
No samples
No samples
Saturday 4:00
No samples
No samples
Saturday 5:00
No samples
No samples
Saturday 6:00
No samples
No samples
Saturday 7:00
No samples
No samples
Saturday 8:00
No samples
No samples
Saturday 9:00
No samples
No samples
Saturday 10:00
No samples
No samples
Saturday 11:00
No samples
No samples
Saturday 12:00
No samples
No samples
Saturday 13:00
No samples
No samples
Saturday 14:00
No samples
No samples
Saturday 15:00
No samples
No samples
Saturday 16:00
No samples
No samples
Saturday 17:00
No samples
No samples
Saturday 18:00
No samples
No samples
Saturday 19:00
No samples
No samples
Saturday 20:00
No samples
No samples
Saturday 21:00
No samples
No samples
Saturday 22:00
No samples
No samples
Saturday 23:00
No samples
No samples
Developer Analytics
Loading competitors...
Frequently Asked Questions
Is Castle of Full Moon 月圆之堡 worth buying right now?
Watch — $3.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Castle of Full Moon 月圆之堡 go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.
Is Castle of Full Moon 月圆之堡 free to play?
Castle of Full Moon 月圆之堡 costs $3.99 on Steam.
What genre is Castle of Full Moon 月圆之堡?
Castle of Full Moon 月圆之堡 is a Indie, RPG game.
Who developed Castle of Full Moon 月圆之堡?
Castle of Full Moon 月圆之堡 was developed by starknow and published by starknow.
What platforms does Castle of Full Moon 月圆之堡 support?
Available on Steam for Windows.
Related Games
5 tags in common
KOSMO AZS
0 last tracked
5 tags in common
*NEW* SCUFFED EPIC VISUAL NOVEL
0 last tracked
5 tags in common
- Doki Doki Family - 特異体質者のドキドキ家族生活
0 last tracked
4 tags in common
! That Bastard Is Trying To Steal Our Gold !
0 last tracked
4 tags in common
- Mischief Dungeon Life - 異世界転生した俺のイタズラダンジョンライフ
0 last tracked
3 tags in common
Lost Gray
0 last tracked
3 tags in common
Marfusha:Sentinel Girls
2 playing
3 tags in common
欧派大作战
0 last tracked