STEAMDB NEXUS

Steam app 3596070 · updated 13 Sep 2026, 04:47 UTC

Book Of The Abyss Playtest

Book Of The Abyss Playtest Steam header artwork
1playing now
224-hour peak
4all-time peak
1average, last 30 days

The last 30 days

0Gain−3.63%% gain4Peak

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

0123414 Aug18 Aug24 Aug29 Aug05 Sep10 SepFriday 14 August 20261 peakSaturday 15 August 20262 peakSunday 16 August 20261 peakMonday 17 August 20262 peakTuesday 18 August 20261 peakFriday 21 August 20261 peakSaturday 22 August 20264 peakSunday 23 August 20261 peakMonday 24 August 20261 peakTuesday 25 August 20261 peakThursday 27 August 20261 peakFriday 28 August 20261 peakSaturday 29 August 20262 peakSunday 30 August 20261 peakMonday 31 August 20262 peakFriday 04 September 20261 peakSaturday 05 September 20262 peakSunday 06 September 20261 peakMonday 07 September 20261 peakWednesday 09 September 20261 peakThursday 10 September 20261 peakFriday 11 September 20261 peakSaturday 12 September 20262 peakSunday 13 September 20261 peak
Daily peakEvery hourly sample

All time

18 months, April 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.

01234Apr 2025Jul 2025Oct 2025Jan 2026Apr 2026Jul 2026April 20250 monthly peakMay 20252 monthly peakJune 20250 monthly peakJuly 20250 monthly peakAugust 20250 monthly peakSeptember 20251 monthly peakOctober 20250 monthly peakNovember 20250 monthly peakDecember 20250 monthly peakJanuary 20260 monthly peakFebruary 20260 monthly peakMarch 20260 monthly peakApril 20260 monthly peakMay 20261 monthly peakJune 20263 monthly peakJuly 20263 monthly peakAugust 20264 monthly peakSeptember 20262 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.

01234July 2026August 2026September 2026October 2026July 20263 peak — daily detail belowAugust 20264 peak — hourly detail belowSeptember 20262 peak — daily detail below
Monthly peakHas finer data

July 2026

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

0123401 Jul05 Jul09 Jul13 Jul17 Jul21 JulWednesday 01 July 20261 peakThursday 02 July 20261 peakFriday 03 July 20262 peakSaturday 04 July 20263 peakSunday 05 July 20261 peakMonday 06 July 20261 peakTuesday 07 July 20261 peakWednesday 08 July 20262 peakThursday 09 July 20262 peakFriday 10 July 20261 peakSaturday 11 July 20263 peakSunday 12 July 20262 peakMonday 13 July 20262 peakTuesday 14 July 20263 peakWednesday 15 July 20262 peakThursday 16 July 20261 peakFriday 17 July 20261 peakSaturday 18 July 20262 peakSunday 19 July 20261 peakMonday 20 July 20262 peakTuesday 21 July 20262 peakWednesday 22 July 20261 peakTuesday 28 July 20260 peakFriday 31 July 20260 peak

August 2026

19 days as the curve, each the highest figure that day. Behind it, 117 hourly samples from 14 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

0123408 Aug13 Aug16 Aug21 Aug24 Aug28 Aug31 AugSaturday 08 August 20261 peakSunday 09 August 20262 peakMonday 10 August 20263 peakThursday 13 August 20261 peakFriday 14 August 20261 peakSaturday 15 August 20262 peakSunday 16 August 20261 peakMonday 17 August 20262 peakTuesday 18 August 20261 peakFriday 21 August 20261 peakSaturday 22 August 20264 peakSunday 23 August 20261 peakMonday 24 August 20261 peakTuesday 25 August 20261 peakThursday 27 August 20261 peakFriday 28 August 20261 peakSaturday 29 August 20262 peakSunday 30 August 20261 peakMonday 31 August 20262 peak

September 2026

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

0123404 Sep05 Sep06 Sep07 Sep09 Sep10 Sep11 Sep12 Sep13 SepFriday 04 September 20261 peakSaturday 05 September 20262 peakSunday 06 September 20261 peakMonday 07 September 20261 peakWednesday 09 September 20261 peakThursday 10 September 20261 peakFriday 11 September 20261 peakSaturday 12 September 20262 peakSunday 13 September 20261 peak

October 2026

Book Of The Abyss Playtest was released on Apr 3, 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

Updated 13 Sep 2026, 04:47 UTC
App ID
3596070
Last updated
30 Aug 2026 build 25021942
Developer
Publisher
Release date
Apr 3, 2025
Platforms
Windows
Download size
255 MB
Install size
455 MB
Genres
Game modes
Controller support
Unknown

Features & support

Steam features

Controllers & input

Accessibility

Popular tags

System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system

Recommended

Recommended: Requires a 64-bit processor and operating system

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:
Supported languages
LanguageFull audio

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

Screenshots & trailers
AchievementsTotal count and selected achievements

5 developer announcements, Apr 2025 to May 2025 · times in UTC

May

  1. 164版本更新

    1. 增加了旅途结束时的音乐 2. 修改了随机数种子的问题 3. 增加了玩家上报报错日志的功能 4. 修改了描述中的富文本错误

    Patch notes
  2. 160版本BUG修复

    1. 修复了角色死后还能被循环类卡牌抽出牌的问题。（由测试玩家Ethum提出） 2. 修复了杀戮异端在敌人邪恶意图下使用防御类卡牌报错的问题。（由玩家内海的铁膝盖、“茉莉、Mori”提出） 3. 修复了buff图标叠层时的显示错误。 4. 修改了buff的描述方式。（由玩家茉莉、Mori） 5. 修复了暴君boss战结束后，扣除角色生命上限的效果持续问题。（由玩家由玩家内海的铁膝盖提出） 6. 增加了“巨盾猛击”中对于护甲消耗的描述。（玩家颖提出）…

    Patch notes

April

  1. Bug Fix

    修复卡牌没有伤害的bug

    Patch notes
  2. Update Notes For April 07

    ːseriousbossːːseriousbossːːseriousbossː fix some UI bugs

    Patch notes
  3. Update Test

    ːseriousbossːːseriousbossːːseriousbossː gagaga🦆 ːsmilechilletːːsmilechilletːːsmilechilletː

    Patch notes

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