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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.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-14.
“amazing game would be nice for the "sandbox" to be infinite but otherwise it's a great game”
— a player, Steam review · 114 hrs played“A fantastic Zach-like (not a Zach-clone) with interesting new mechanics where you build integrated circuits from parts, rather than adding code to parts that are provided. There's very little hand-holding, which I appreciate. The docs, however, are poorly written and confusing,…”
— a player, Steam review · 41 hrs played“A game quality of Zachtronics games, and it's free. Recommend it.”
— a player, Steam review · 2 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-07 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Patch 18 MAR 2025
French localization is now available, thanks to Sykoo! A huge thank you!
Patch 3 FEB 2025
Fixed a bug that caused text to be misaligned when opening the options menu.
Korean Translation (Patch 30 JAN 2025)
- The game has now a Korean translation available. - Thanks to JW (intothereign)
Small Patch 26 JAN 2025
Descriptions from Linked List and MEM4 Emulator have been slightly modified for improved clarity.
PATH 14 JAN 2025
I updated the execution order grid displayed on the second page of "Pairer" for accuracy.
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Casual, Indie, Simulation, Strategy, Free To Play |
| Player tags | Programming · Simulation · Automation · Puzzle · Strategy · Sandbox · Education · Building · Hacking · 2D · Procedural Generation · Abstract (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Steam Cloud · Stats · Steam Leaderboards |
| Languages | English, Spanish - Spain, Spanish - Latin America, Korean, French |
| Achievements | 20 |
| Official site | https://abidos.carrd.co |
Minimum system requirements (PC)
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