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41% positive of 12 · Mixed · Live from Steam
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You wake up at a terminal you've never seen before. The language is alien. The interface is hostile. Every wrong click has consequences. Decode constructed languages, navigate unfamiliar operating systems, and survive the unknown in this puzzle-survival experience.
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Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Your alien Clippy is now the voice of every win. Every mission, objective, puzzle, and milestone gets a sardonic Marvin-toned reaction. Plus: combo-streak callouts, a new reaction log drawer, and lots of minor bug fixes. AXIOM/2 grows ever closer
A new entity has emerged from the AXIOM/1 terminal.It calls itself GUYDEX. It watches you. It tracks your cursor. It taps its foot when you take too long. And it has opinions about everything you do.What's NewThe mission tracker list has been replaced with som…
The system has been stabilised. This update fixes several crashes reported by players and testers, improves GPU compatibility across Windows hardware, and lays the groundwork for the next chapter. What's fixed Fixed a crash on Windows 11 that caused a permanen…
The signal didn't go unnoticed. The free first chapter of MysteryOS only showed you one alien operating system. AXIOM/2 is the paid DLC that follows. It's a fully separate level set inside NexusOS, a corporate desktop interface built by an entirely new alien r…
• Save system: Save your progress during gameplay using the new Save button in the taskbar. Saves cost points, scaled by difficulty. • Continue from save: Return to your last save point from the level select screen or after a crash. • Steam Cloud: Save files n…
• System Integrity meter — Inspired by the new mobile apps for Android and iOS, dangerous actions now drain system integrity instead of instant crash. Game over only when the meter hits zero. • Integrity scales by difficulty: Explorer mode is forgiving with sl…
NEXUS LINK DORMANT: 174 DAYS OPERATOR SIGNATURE FOUND IN CACHE ashul thul. kas keth. "The signal returns." You went quiet. So did we. The Kron'thul did not. NexusOS kept running. The compliance logs kept filling. Operators kept being reassigned. Voluntarily, a…
"kron'al ashul. The Force, as you call it." The Kron'thul collective have their own legends. Tatooine isn't one of them. Lightsabers, they've never seen. But the part where someone wakes up on a strange world, surrounded by writing they cannot read, working ou…
CONNECTION ESTABLISHED. OPERATOR DETECTED. INITIATING HANDSHAKE...You thought AXIOM/1 was the whole story. You were wrong.A new operating system has activated. Cold, corporate, and watching your every click. Three virtual desktops. An alien social network. A c…
MysteryOS is a puzzle-survival game where every level drops you into a completely unknown operating system. Nothing works the way you expect. The language is alien. The UI is unfamiliar. Every wrong action has real consequences. Your job: figure out how this s…
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What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 41% on 2026-11-01 → 41% today (12 reviews)
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