STEAMDB NEXUS

Steam app 2180700 · updated 12 Sep 2026, 22:35 UTC

ABI-DOS

Build the most advanced operating system ever created! Can you master the fictional simulation language of this mind-bending machine? Design circuits, automate UBITS (coloured mobile data blocks), and optimize your system. The Admin is always watching, and he’s not what he seems.

ABI-DOS Steam header artwork
ABI.DOS.SOFTWAREABI.DOS.SOFTWARE
7playing now
1024-hour peak
241all-time peak
5average, last 30 days

The last 30 days

+0.5Gain+9.43%% gain14Peak

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

048111513 Aug18 Aug23 Aug28 Aug02 Sep07 Sep12 SepThursday 13 August 20262 peakFriday 14 August 20268 peakSaturday 15 August 20266 peakSunday 16 August 202611 peakMonday 17 August 20267 peakTuesday 18 August 20266 peakWednesday 19 August 20269 peakThursday 20 August 20267 peakFriday 21 August 20267 peakSaturday 22 August 202610 peakSunday 23 August 20267 peakMonday 24 August 20267 peakTuesday 25 August 20268 peakWednesday 26 August 202612 peakThursday 27 August 20265 peakFriday 28 August 20266 peakSaturday 29 August 202610 peakSunday 30 August 202613 peakMonday 31 August 202612 peakTuesday 01 September 20267 peakWednesday 02 September 20268 peakThursday 03 September 202610 peakFriday 04 September 202612 peakSaturday 05 September 202614 peakSunday 06 September 202612 peakMonday 07 September 202610 peakTuesday 08 September 20269 peakWednesday 09 September 202610 peakThursday 10 September 202610 peakFriday 11 September 20268 peakSaturday 12 September 202610 peak
Daily peakEvery hourly sample

All time

23 months, November 2024 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.

065130195260Nov 2024Feb 2025May 2025Aug 2025Nov 2025Feb 2026May 2026Aug 2026November 202418 monthly peakDecember 202423 monthly peakJanuary 2025241 monthly peakFebruary 202569 monthly peakMarch 202528 monthly peakApril 202526 monthly peakMay 202524 monthly peakJune 202524 monthly peakJuly 202546 monthly peakAugust 202519 monthly peakSeptember 202519 monthly peakOctober 202515 monthly peakNovember 202522 monthly peakDecember 202519 monthly peakJanuary 202617 monthly peakFebruary 202616 monthly peakMarch 202617 monthly peakApril 202616 monthly peakMay 202617 monthly peakJune 202617 monthly peakJuly 202616 monthly peakAugust 202613 monthly peakSeptember 202614 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.

0491317July 2026August 2026September 2026October 2026July 202616 peak — daily detail belowAugust 202613 peak — hourly detail belowSeptember 202614 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.

049131701 Jul06 Jul11 Jul16 Jul21 Jul26 Jul31 JulWednesday 01 July 20267 peakThursday 02 July 20267 peakFriday 03 July 20269 peakSaturday 04 July 202615 peakSunday 05 July 202611 peakMonday 06 July 202616 peakTuesday 07 July 20269 peakWednesday 08 July 202611 peakThursday 09 July 202611 peakFriday 10 July 202612 peakSaturday 11 July 20267 peakSunday 12 July 202613 peakMonday 13 July 20268 peakTuesday 14 July 20268 peakWednesday 15 July 20268 peakThursday 16 July 20269 peakFriday 17 July 202610 peakSaturday 18 July 202611 peakSunday 19 July 202610 peakMonday 20 July 202610 peakTuesday 21 July 202610 peakWednesday 22 July 202610 peakThursday 23 July 20268 peakFriday 24 July 20269 peakSaturday 25 July 20266 peakSunday 26 July 202610 peakMonday 27 July 202613 peakTuesday 28 July 20265 peakWednesday 29 July 20268 peakThursday 30 July 20269 peakFriday 31 July 20267 peak

August 2026

31 days as the curve, each the highest figure that day. Behind it, 161 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

047111401 Aug06 Aug11 Aug16 Aug21 Aug26 Aug31 AugSaturday 01 August 20266 peakSunday 02 August 20268 peakMonday 03 August 202610 peakTuesday 04 August 20268 peakWednesday 05 August 20268 peakThursday 06 August 202612 peakFriday 07 August 20269 peakSaturday 08 August 202611 peakSunday 09 August 202611 peakMonday 10 August 20269 peakTuesday 11 August 202612 peakWednesday 12 August 20268 peakThursday 13 August 20269 peakFriday 14 August 20268 peakSaturday 15 August 20266 peakSunday 16 August 202611 peakMonday 17 August 20267 peakTuesday 18 August 20266 peakWednesday 19 August 20269 peakThursday 20 August 20267 peakFriday 21 August 20267 peakSaturday 22 August 202610 peakSunday 23 August 20267 peakMonday 24 August 20267 peakTuesday 25 August 20268 peakWednesday 26 August 202612 peakThursday 27 August 20265 peakFriday 28 August 20266 peakSaturday 29 August 202610 peakSunday 30 August 202613 peakMonday 31 August 202612 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.

048111501 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 20267 peakWednesday 02 September 20268 peakThursday 03 September 202610 peakFriday 04 September 202612 peakSaturday 05 September 202614 peakSunday 06 September 202612 peakMonday 07 September 202610 peakTuesday 08 September 20269 peakWednesday 09 September 202610 peakThursday 10 September 202610 peakFriday 11 September 20268 peakSaturday 12 September 202610 peak

October 2026

ABI-DOS was released on 15 Nov, 2024.

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, 22:35 UTC
App ID
2180700
Last updated
18 Mar 2025 build 17769329
Developer
ABI.DOS.SOFTWARE
Publisher
ABI.DOS.SOFTWARE
Release date
15 Nov, 2024
Platforms
Windows
Download size
407 MB
Install size
515 MB
Genres
Casual, Indie, Simulation, Strategy, Free To Play
Game modes
Single-player
Controller support
Unknown
Achievements
20

Features & support

Steam features

Steam AchievementsSteam CloudStatsSteam LeaderboardsFamily Sharing

Controllers & input

Accessibility

Popular tags

SimulationProgrammingAutomationPuzzleStrategySandboxEducationBuildingHacking2DProcedural GenerationAbstractLogicFuturisticSingleplayerRelaxingIndieCasualFree to Play
About this gameFull description from Steam
Recover damaged images: Fix corrupted files: Design the logic: Simulate the program: ABI-DOS: The Ultimate Automation Puzzle Challenge. In ABI-DOS, you build circuits to manipulate and guide UBITS (colored digital blocks) toward specific goals based on the given documentation. By strategically placing wires and instruction blocks on a microchip, you manipulate inputs to achieve desired outputs—whether it’s fixing corrupted files, recovering damaged .png images, or simulating particle trajectories. ABI-DOS challenges you to meet strict specifications through inventive problem-solving. No programming experience is required, as everything is explained in-game. The focus is on assembling logical solutions within space and operational constraints rather than on real-world programming concepts. The puzzles are challenging and offer no predetermined solutions, allowing for multiple approaches. Each level starts with a blank canvas, giving you the freedom to create your own unique solution from scratch. You are encouraged to optimize your algorithms, fostering creative exploration and friendly competition as you compare solutions with friends and on global leaderboards. With over 50 puzzles and more than 50 hours of gameplay, ABI-DOS offers extensive content for players to delve into. The work is overseen by the system's Admin, a mysterious figure who is not what he seems. Set in a retro-punk world, this enigmatic presence adds an extra layer of intrigue as you uncover the deeper mysteries of the system. Drawing inspiration from Zach-like games, ABI-DOS pays homage to its predecessors while offering a fresh perspective on the assembly puzzle genre.
Content & age ratings2 regional ratings

Regional ratings

DEJUSl
IGRS3
System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7 / 8 / 10 / 11 Processor: 2 GHz Memory: 1 GB RAM Graphics: 1 GB DirectX: Version 11 Storage: 1 GB available space Sound Card: Anything VR Support: No

Recommended

Recommended: Requires a 64-bit processor and operating system OS *: Windows 7 / 8 / 10 / 11 Processor: 2 GHz Memory: 1 GB RAM Graphics: 1 GB DirectX: Version 11 Storage: 1 GB available space Sound Card: Anything VR Support: No

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:
Supported languages5 languages
LanguageFull audio
English
Spanish - Spain
Spanish - Latin America
Korean
French

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

20 achievements in total.

Show selected achievements (may contain spoilers)
4 SEGMENTSAchievement
8 SEGMENTSAchievement
12 SEGMENTSAchievement
16 SEGMENTSAchievement
20 SEGMENTSAchievement
24 SEGMENTSAchievement
28 SEGMENTSAchievement
32 SEGMENTSAchievement
36 SEGMENTSAchievement
MIND OF A MACHINEAchievement

View all Steam achievements

18 developer announcements, Nov 2024 to Mar 2025 · times in UTC

March

  1. Patch 18 MAR 2025

    French localization is now available, thanks to Sykoo! A huge thank you!

    Patch notes

February

  1. Patch 3 FEB 2025

    Fixed a bug that caused text to be misaligned when opening the options menu.

    Patch notes

January

  1. Korean Translation (Patch 30 JAN 2025)

    - The game has now a Korean translation available. - Thanks to JW (intothereign)

    Patch notes
  2. Small Patch 26 JAN 2025

    Descriptions from Linked List and MEM4 Emulator have been slightly modified for improved clarity.

    Patch notes
  3. PATH 14 JAN 2025

    I updated the execution order grid displayed on the second page of "Pairer" for accuracy.

    Patch notes
  4. Patch 9 JAN 2025

    While a histogram is downloading, an ellipsis will appear in the top-left corner of the histograms screen. Once the download is complete, the screen will display the number of scores downloaded. If this number is less than 9,999, it will…

    Patch notes
  5. Patch 8 JAN 2025

    - I clarified how OE functions in the Pairer level with an example page. - I added explanatory text to the Signal Counter level. - I updated the quick reference guide to include utilities that mirror the information available in the…

    Patch notes
  6. Leaderboards FIX

    As the number of players in the game increased, I noticed some issues with the histograms. Initially, the histograms started growing as expected, but over time, they began to look incorrect. Some lower percentiles appeared nonsensical…

    Patch notes
  7. ABI-DOS is now FREE forever

    As promised in December, the game is now completely free for everyone to enjoy—forever! This decision comes after modest sales during the first month and a half after release. While the game was still profitable, financial gain was never my…

    Naydemonium

December

  1. Hotfix 29 DEC 2024

    - Solved a minor bug affecting number input on icons.

    Patch notes
  2. ABI-DOS will be Free on Steam: A Heartfelt Thank You to Our Supporters

    I’m excited to announce that starting January 2025, ABI-DOS will be available for free on Steam. This decision is not a reflection of the game’s quality—which I wholeheartedly believe is excellent—or its reception, which has been very…

    Naydemonium

November

  1. Patch 24 NOV 2024

    Added a quick access button for the online manual in the options menu (accessible by pressing ESC). The offline version is in the installation folder. The Sandbox is available after completing 8 levels.

    Patch notes
  2. Patch 23 NOV 2024

    Updated the description of "Color Test II" to emphasize key concepts. Added an example to "Linked List" to enhance understanding of the task. Fixed the F12 functionality to correctly capture a screenshot for sharing on Steam.

    Patch notes
  3. Patch 22 NOV 2024

    Added collision examples to the level "Seizer" to clarify how collisions work. New icons now feature a red mark to make them more noticeable. Updated the level description for "Color test I" to improve clarity.

    Patch notes
  4. Quick reference guide available

    A quick reference guide is available for easy access to information about UBITS, wires, signals, and more. You can find it at the following link: 👉 https://store.steampowered.com/manual/2180700 In-Game Folder: Navigate to your Steam…

    Naydemonium
  5. Patch 20 NOV 2024

    - Introduced an optional hint system for the first four levels (tutorial) to enhance accessibility.

    Patch notes
  6. Patch 18 NOV 2024

    Patch Notes: You can now press ALT + 1/2/3 to quickly select a wire type. Levels with completed challenges are now marked in the main menu for easier tracking. If errors occur during a simulation, stopping it will keep the game on the same…

    Patch notes
  7. Quick fix 1

    - Now, you shouldn’t be stuck in "challenge mode" if you unlocked it in the demo but not in the main game.

    Patch notes

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