Office 21 : Survival Horror v3.1.6 MOD APK (Full)
Cbloxstudios
MOD
off
MOD: Full
Something's hunting you. Search the office. Use what you find. Survive the night
Version
3.1.6
Latest
Size
259.27 MB
Total
Reached
7
Views
Updated
07-24
2026
Screenshots
Office 21 is a first-person horror survival game that forces you to work a shift in a mysterious office building where every aspect is abnormal.
Explore a large Open-World/Area to find secrets and go to different locations.
What begins as an ordinary day at work quickly turns into a fight for survival as the building malfunctions and the employees who once sat in your position become something else entirely.
Survive across multiple nights, each introducing new mechanics, entities, objectives, and threats. Explore the dark office or stay inside to deal with the dangers yet to come. Your power is limited, so be mindful of conserving your resources in order to make it through the night.
As the night progresses, deal with floods, broken phones, lingering entities, and survive for as long as you can before finally leaving and clocking out.
No night plays out the same. Dynamic events and unexpected encounters keep every night interesting and unpredictable.
Features:
• Multiple unique nights
• Atmospheric first-person horror focused on tension and suspense
• A dynamic event system that changes your experience
• Challenging survival encounters against the Awakened Workers
• An immersive office environment filled with interesting areas to explore
• Gradually escalating difficulty as the night progresses
The clock is ticking.
They're already here.
Explore a large Open-World/Area to find secrets and go to different locations.
What begins as an ordinary day at work quickly turns into a fight for survival as the building malfunctions and the employees who once sat in your position become something else entirely.
Survive across multiple nights, each introducing new mechanics, entities, objectives, and threats. Explore the dark office or stay inside to deal with the dangers yet to come. Your power is limited, so be mindful of conserving your resources in order to make it through the night.
As the night progresses, deal with floods, broken phones, lingering entities, and survive for as long as you can before finally leaving and clocking out.
No night plays out the same. Dynamic events and unexpected encounters keep every night interesting and unpredictable.
Features:
• Multiple unique nights
• Atmospheric first-person horror focused on tension and suspense
• A dynamic event system that changes your experience
• Challenging survival encounters against the Awakened Workers
• An immersive office environment filled with interesting areas to explore
• Gradually escalating difficulty as the night progresses
The clock is ticking.
They're already here.
Full
Help & FAQ
Is HappyMod App on HappyMod.work works better than other site?
Yes, the HappyMod on HappyMod.work has no ads with faster download spped. All the Mod APKs keep updating.
What is XAPK? How to install?
XAPK is a package format that combines APK and extra data files. Download and and install HappyMod App to install it.
The download link is broken!
Try refreshing the page, switching your network connection, or selecting an alternative mirror. If the issue persists, please submit a report so we can update the link as soon as possible.
What causes mods not to work properly?
Common causes include version mismatches, unsupported device architecture, or missing system permissions. To ensure stability, always match the mod to your specific game version and perform a clean installation.
How to fix the "App not installed" error?
Uninstall any conflicting builds of the app, clear your installer's cache, and ensure you have sufficient internal storage. Once cleared, retry the installation using the original installer package.
How to update mods without losing data?
If the digital signatures match, you can simply install the update directly over the existing app. However, it is highly recommended to back up your game files before upgrading to prevent any accidental data loss.
Data Safety
Safety starts with understanding how developers collect and share your data.
- No data shared with third parties
- This app may collect these data types: Location, Personal info, and 3 others
- Data is encrypted in transit
- You can request that data be deleted