STEAMDB NEXUS

Steam app 2399910 · updated 12 Sep 2026, 21:56 UTC

Byakuya Museum

“I should have...died...”Opened eyes again, he found himself in a bustling museum!Players need to take on the role of a raven specimen boy "Gregorio" to explore the Byakuya Museum. Your mission is to plumb the secrets of Time Town, uncover  your own past, and escape from the museum.

Byakuya Museum Steam header artwork
墨染_Aifeimo墨染_Aifeimo
1playing now
2124-hour peak
97all-time peak
11average, last 30 days

The last 30 days

−1.6Gain−12.19%% gain37Peak

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

01020304013 Aug18 Aug23 Aug28 Aug02 Sep07 Sep12 SepThursday 13 August 20264 peakFriday 14 August 202629 peakSaturday 15 August 202621 peakSunday 16 August 202637 peakMonday 17 August 202628 peakTuesday 18 August 202627 peakWednesday 19 August 202624 peakThursday 20 August 202628 peakFriday 21 August 202631 peakSaturday 22 August 202629 peakSunday 23 August 202628 peakMonday 24 August 202632 peakTuesday 25 August 202625 peakWednesday 26 August 202622 peakThursday 27 August 202618 peakFriday 28 August 202614 peakSaturday 29 August 202621 peakSunday 30 August 202622 peakMonday 31 August 202619 peakTuesday 01 September 202615 peakWednesday 02 September 202611 peakThursday 03 September 202623 peakFriday 04 September 202612 peakSaturday 05 September 202619 peakSunday 06 September 202621 peakMonday 07 September 202616 peakTuesday 08 September 202616 peakWednesday 09 September 202610 peakThursday 10 September 202623 peakFriday 11 September 202613 peakSaturday 12 September 202621 peak
Daily peakEvery hourly sample

All time

41 months, May 2023 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.

0265279105May 2023Nov 2023May 2024Nov 2024May 2025Nov 2025May 2026May 202360 monthly peakJune 202329 monthly peakJuly 202320 monthly peakAugust 202320 monthly peakSeptember 202316 monthly peakOctober 202316 monthly peakNovember 202338 monthly peakDecember 202342 monthly peakJanuary 202446 monthly peakFebruary 202449 monthly peakMarch 202473 monthly peakApril 202497 monthly peakMay 202436 monthly peakJune 202436 monthly peakJuly 202434 monthly peakAugust 202436 monthly peakSeptember 202426 monthly peakOctober 202433 monthly peakNovember 202425 monthly peakDecember 202424 monthly peakJanuary 202527 monthly peakFebruary 202526 monthly peakMarch 202530 monthly peakApril 202526 monthly peakMay 202524 monthly peakJune 202524 monthly peakJuly 202522 monthly peakAugust 202526 monthly peakSeptember 202530 monthly peakOctober 202528 monthly peakNovember 202529 monthly peakDecember 202529 monthly peakJanuary 202636 monthly peakFebruary 202638 monthly peakMarch 202638 monthly peakApril 202633 monthly peakMay 202636 monthly peakJune 202640 monthly peakJuly 202638 monthly peakAugust 202637 monthly peakSeptember 202623 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.

010213141July 2026August 2026September 2026October 2026July 202638 peak — daily detail belowAugust 202637 peak — hourly detail belowSeptember 202623 peak — hourly detail below
Monthly peakHas finer data

July 2026

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

01021314101 Jul06 Jul11 Jul16 Jul21 Jul26 Jul31 JulWednesday 01 July 202622 peakThursday 02 July 202621 peakFriday 03 July 202622 peakSaturday 04 July 202634 peakSunday 05 July 202626 peakMonday 06 July 202624 peakTuesday 07 July 202629 peakWednesday 08 July 202624 peakThursday 09 July 202620 peakFriday 10 July 202628 peakSaturday 11 July 202629 peakSunday 12 July 202636 peakMonday 13 July 202628 peakTuesday 14 July 202625 peakWednesday 15 July 202638 peakThursday 16 July 202626 peakFriday 17 July 202631 peakSaturday 18 July 202631 peakSunday 19 July 202624 peakMonday 20 July 202627 peakTuesday 21 July 202626 peakWednesday 22 July 202630 peakThursday 23 July 202636 peakFriday 24 July 202625 peakSaturday 25 July 202628 peakSunday 26 July 202630 peakMonday 27 July 202628 peakTuesday 28 July 202632 peakWednesday 29 July 202630 peakThursday 30 July 202628 peakFriday 31 July 202625 peak

August 2026

31 days as the curve, each the highest figure that day. Behind it, 251 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

01020304001 Aug06 Aug11 Aug16 Aug21 Aug26 Aug31 AugSaturday 01 August 202625 peakSunday 02 August 202621 peakMonday 03 August 202626 peakTuesday 04 August 202629 peakWednesday 05 August 202634 peakThursday 06 August 202624 peakFriday 07 August 202619 peakSaturday 08 August 202619 peakSunday 09 August 202625 peakMonday 10 August 202628 peakTuesday 11 August 202627 peakWednesday 12 August 202633 peakThursday 13 August 202632 peakFriday 14 August 202629 peakSaturday 15 August 202621 peakSunday 16 August 202637 peakMonday 17 August 202628 peakTuesday 18 August 202627 peakWednesday 19 August 202624 peakThursday 20 August 202628 peakFriday 21 August 202631 peakSaturday 22 August 202629 peakSunday 23 August 202628 peakMonday 24 August 202632 peakTuesday 25 August 202625 peakWednesday 26 August 202622 peakThursday 27 August 202618 peakFriday 28 August 202614 peakSaturday 29 August 202621 peakSunday 30 August 202622 peakMonday 31 August 202619 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 111 hourly samples. Each dip is a night. Weekends are shaded.

0612192501 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 202615 peakWednesday 02 September 202611 peakThursday 03 September 202623 peakFriday 04 September 202612 peakSaturday 05 September 202619 peakSunday 06 September 202621 peakMonday 07 September 202616 peakTuesday 08 September 202616 peakWednesday 09 September 202610 peakThursday 10 September 202623 peakFriday 11 September 202613 peakSaturday 12 September 202621 peak

October 2026

Byakuya Museum was released on 26 May, 2023.

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, 21:56 UTC
App ID
2399910
Last updated
20 Aug 2026 build 24834709
Developer
墨染_Aifeimo
Publisher
墨染_Aifeimo
Release date
26 May, 2023
Platforms
Windows
Download size
567 MB
Install size
735 MB
Genres
Indie, RPG, Free To Play
Game modes
Single-player
Controller support
Unknown
Achievements
100

Features & support

Steam features

Family Sharing

Controllers & input

Accessibility

Popular tags

JRPGHorrorFantasyIndiePixel GraphicsLore-RichMultiple EndingsStory RichAnimeDarkNatureRPGColorfulVisual Novel2DTime ManipulationSingleplayerFree to Play2D Platformer
About this gameFull description from Steam
This is a free independent pixel RPG game. The game tells the story of an ancient building in “Time Town”, the Byakuya Museum. It takes around 8 hours to play through the main game, and may be extended depending on  actual play. +-------------------------------------------------------------------------------------------------+ 【Game Controls】 Confirm: Enter/Space/Mouse Left Button Cancel: X/Esc/Mouse Right Button Open Menu: X Walk: Arrow Keys Run: Shift Fast Forward Dialogue: Ctrl/Alt +-------------------------------------------------------------------------------------------------+ 【Notes】 - Please do not reproduce, exploit, copy or re-publish any materials or data of the game without permission. - There are no specific restrictions on uploading gameplay videos, but please refrain from charging for them due to copyright issues with the materials used. - The world view and scenes in this game are all original and fictional, and have no connection to real-life locations. - The game has some death traps that can be triggered easily, so please remember to save your progress in time! - If you encounter bugs such as game freezes, try reloading or restarting the game. - The game contains three groups of graphic bloody CG scenes, but there are no jump scare elements. +-------------------------------------------------------------------------------------------------+ 【Number of Endings】 Bad Ending: 15 Normal Ending: 3 True Ending: 1 +-------------------------------------------------------------------------------------------------+ This is my first game and I know there is much room for improvement. Looking forward to your gameplay and feedback! QQ group:156804787
Content & age ratings2 regional ratings

Regional ratings

DEJUS6Violência fantasiosa
IGRS13Kekerasan
System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS: micrsoft 64bit Window7 Processor: 64bit Intel compatible Dual Core CPU Memory: 2 GB RAM Graphics: DX10 Compliant graphics card DirectX: Version 10 Storage: 2 GB available space Sound Card: DirectX compatible

Recommended

Recommended: Requires a 64-bit processor and operating system OS *: micrsoft 64bit Window7.8.10 Processor: 64bit Intel compatible Dual Core CPU Memory: 8 GB RAM Graphics: DX11 Compliant graphics card DirectX: Version 10 Storage: 3 GB available space Sound Card: DirectX compatible

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:
Supported languages1 languages
LanguageFull audio
Simplified Chinese

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

100 achievements in total.

Show selected achievements (may contain spoilers)
RebirthdayAchievement
好奇心害死鸦Achievement
初见Achievement
哦呀?Achievement
夏日花火Achievement
时光镇跳水运动员Achievement
到这边来吧Achievement
禁忌的咒文Achievement
群青Achievement
真的是熊孩子!Achievement

View all Steam achievements

12 developer announcements, May 2023 to Aug 2026 · times in UTC

August

  1. 修复了击杀熊熊国王死档问题

    杀戮前请三思哦

    Patch notes

February

  1. 小更新

    重置了一些cg,在彩蛋房间内加入了新游戏《别死》的游玩二维码。(该游戏篇幅短小,流程仅30分钟,暂不考虑上架steam,已免费发布至project1论坛。)

    Patch notes

July

  1. Byakuya Museum Original cotton dolls are now available for order!

    Byakuya Museum's original cotton dolls are now available for deposit!Currently, there are two designs available: ‘Gregorio’ and ‘Byakuya Sumizome.’ Purchase both designs together to receive a combo discount.This group purchase will not be…

    墨染

February

  1. 续作《骨川人偶坊》demo已免费上线STEAM!

    说是续作其实时间线上是前作!可以免费试玩demo! demo很短,只有半小时的流程,是一个小小的序章,后续会更新demo2.0版本,加入玩法。 博物馆通关后的彩蛋屋内也可以找到续作入口哦~ 顺便,《白夜博物馆》居然已经“好评如潮”了?! 谢谢大家的喜欢!!我会继续努力的! 祝大家新年快乐!

    Patch notes

December

  1. 续作更新:请在彩蛋房内寻找续作游玩入口~

    续作:《骨川人偶坊》demo制作完毕啦!做了中日英三种语言。steam也已经送审了,等待审核通过就可以直接在steam上玩~ 也是免费游戏!demo体量很小,大概半个小时内就能玩完。 游玩入口在通关真结局后的彩蛋屋内可以找到~ or 打开b站,搜索骨川人偶坊,宣传pv的视频简介和评论区里会有游玩地址!

    Patch notes

September

  1. Update on September 19th: Attempted to fix a stuck bug

    1. Attempted to fix the stuck situation. If there is still a stuck situation, please give me feedback (email: [email protected] ) 2. In the preparation for the sequel, I may have to wait until I have a place in my graduate studies before I…

    Patch notes

August

  1. 8.30 Update instructions and instructions on card refunds, information, and peri

    1. Optimized the bugs triggered after returning from the egg house to the museum 2. Game related information/food can be accessed through Weibo and the "White Night Museum", and daily food can be changed~ 3. There will be a sequel!! But I…

    Patch notes

June

  1. Attempted to fix the stuck and unresponsive bugs

    I should be able to run normally this time! If it still doesn't work, go download the local version of the machine core network. qwq After playing, adults can give a review! The child really wants to see it!!! (Looking forward to) (Star…

    Patch notes
  2. Reasons and solutions for machine jamming

    When entering the game for the first time, it is normal to experience stuttering. If there is no response, just turn it off and try again a few more times. If the game is stuck, you can only save more files casually. We apologize for any…

    Patch notes

May

  1. Reasons and solutions for machine jamming

    When entering the game for the first time, it is normal to experience stuttering. If there is no response, just turn it off and try again a few more times. If the game is stuck, you can only save more files casually. We apologize for any…

    Patch notes
  2. Reasons and solutions for issues such as jamming/non response

    When entering the game for the first time, it is normal to experience stuttering. If there is no response, just turn it off and try again a few more times. If the game is stuck, you can only save more files casually. We apologize for any…

    Patch notes
  3. 5.28 optimization of specimen obstruction

    Revised the issue of specimen bodies blocking the way on the 4th floor, leaving the other floors unchanged (as it seems that only the 4th floor will cause jamming) p. The first time you load the game, it may get stuck. If you don't respond…

    Patch notes

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