Probably Stolen Updates and Patch Notes
Check your installed build before using a guide. This index connects official patch notes with the systems and troubleshooting pages affected by each update.
Official announcement · Demo Update 049 · sources checked October 13, 2026
Update 049: new Demo and gameplay changes
The September 14, 2026 Demo update added early machines, challenge perks, Equip mode and Toolbox improvements. Its notes also cover liquid handling, animal care, Security and save fixes. These are Demo changes; full-release behavior needs its own version check.
Read the official Update 049 patch notes
Guides to check after updating
- Machines and Power
- Controls and Inventory
- Water Purification
- Animals and Rats
- Security and Evidence
- Demo Limits and Troubleshooting
Demo version reference: 049 and Steam build 25382790
049 is the official update label. Steam build 25382790 is the version reference used for this site’s Demo notes, confirmed against the Steam-installed Demo on October 13, 2026. It is not a claim that every player has this build or that it remains the latest download. Compare your installed version before applying version-specific advice.
Full-release launch details
For the October 28 launch, price and unlock-time status, use the release date page. For current build and Demo scope, use the Demo overview.