Screenshots
Watch trailer on Steam ↗Sunray OS
sykold · Published by sykold
Positive — 93% positive (29 reviews)
Last updated 28 Sept 2026
You just bought a PC, only to discover it once belonged to someone who has mysteriously disappeared. You soon realize that the key to find him may be hidden deep inside your OS, governed by a weird chatbot named Zippy. What will be your first move?
DJCTQ 14
£4.99
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
£4.99
Price history
4 Sept 2026Lowest: £4.99 · Highest: £4.996 Oct 2026
Adventure, Indie, Simulation · 2024 · More under £5 games
Sunray OS invites you to uncover mysteries within your newly acquired PC, guided by an enigmatic chatbot. Dive into an engaging simulation where every decision could lead you closer to finding the vanished user.
About this game
Sunray OS is a mystery-thriller game with horror elements in which you must investigate the disappearance of a guy whose only connection to you is that he was the previous owner of your new computer.
To do this, you will have to interact with a fictional operating system inspired by real systems, using applications, browsing websites, watching videos, or chatting with "Zippy", a chatbot who seems to have something wrong with it.
Sunray OS features a linear but well-detailed storyline, unexpected events, mysteries to solve in order to progress, and hidden secrets.
To do this, you will have to interact with a fictional operating system inspired by real systems, using applications, browsing websites, watching videos, or chatting with "Zippy", a chatbot who seems to have something wrong with it.
Sunray OS features a linear but well-detailed storyline, unexpected events, mysteries to solve in order to progress, and hidden secrets.
WILL YOU SOLVE THE MYSTERY?
You just bought a cheap PC online. Suddenly, however, you discover that you are not the first owner of the PC, and the person who owned it before you has seemingly vanished into thin air. Your PC becomes the only real clue to track him down.A FULLY EXPLORABLE PC
Explore clues by interacting with over 10 highly detailed websites, delve into 10+ applications, and enjoy a fully customizable desktop. Remember to take breaks from the investigation and relax with music and videos.A RICH AND ENTERTAINING STORY
What happened to the previous owner? Why is this "Zippy" chatbot acting weird? What secrets is this OS hiding? With numerous mysteries to unravel and people to talk to, what will be your first move?System Requirements
Will my PC run this? →Minimum
Minimum:
- OS: Windows 10, 11
- Processor: Intel, AMD
- Memory: 4 GB RAM
- Graphics: 4GB GPU
- Storage: 1500 MB available space
Supported Languages
English*
*languages with full audio support
*languages with full audio support
Latest news
Patch NotesOfficial
v1.0.3 Patch Notes
I've added a setting to switch the aspect ratio between wide and standard. You can find this setting both in the configuration phase at the beginning of the game (the little gear icon on the left) and in the OS toolbar (on the settings page). This should allow players with very large or very small monitors to have a normal gaming experience, even though the game was designed using the classic 16:9 aspect ratio. CHANGELOG: Added the aspect ratio setting to the OS toolbar. Added the aspect ratio setting to the initial OS configuration screen. Follow me on Twitter for more updates!Read full article on Community Announcements (sykoldgames)Patch NotesOfficial
v1.0.21 Patch Notes
Different aspect ratios should now work correctly. (if not, please let me know in the discussions, thanks)Read full article on Community Announcements (Pock)Patch NotesOfficial
v1.0.2 Patch Notes
I've made a bunch of QoL fixes and changes, and I've added the possibility of resetting all your progress. You'll find the button in the settings menu. CHANGELOG: Changed text in the OS first configuration. Made browser searches case insensitive. Made a certain puzzle more intuitive. Replaced an image from an event. Added a dark mode button for the “Dialogical” app. Added sounds to a scene. Added a new image to the final scene. Added a button to reset progress in settings. Fixed a sound issue in the OS first configuration. Fixed the design of a site. Follow me on Twitter for more updates!Read full article on Community Announcements (Pock)Patch NotesOfficial
v1.0.12 Patch Notes
Small additional fixes to the patch released earlier todayRead full article on Community Announcements (sykoldgames)Patch NotesOfficial
v1.0.1 Patch Notes
The issue where certain users couldn't progress through the game should have been resolved. If you encounter any other bugs, please inform me, and I'll promptly address them. Additionally, please be aware that your save file will be overwritten due to modifications in the save encryption type. I apologize for any inconvenience caused and extend my thanks to everyone playing my game :) CHANGELOG: Fixed a game-breaking bug where a certain message wouldn't arrive. Fixed an issue where an icon wouldn't be deactivated. Fixed a save point loading wrong data. Changed save encryption type. Minor code refactoring.Read full article on Community Announcements (sykoldgames)
