
Game Overview
An abandoned psychiatric institution becomes a suffocating maze of darkness, corpses, and unseen threats in Deca, an extreme indie horror experience built to keep players uneasy. A woman awakens on the floor with no memory of how she arrives there, surrounded by evidence that something has gone horribly wrong. Strange sounds echo through the corridors, suggesting the asylum is far from empty, while every locked door and bloodstained room pushes the mystery deeper. The mood is oppressive rather than action-driven, leaning into panic, isolation, and the constant fear of being caught unaware.
Survival depends on careful investigation as players move through the asylum room by room in search of an exit. Notes, clinical files, audio material, and old press clippings gradually reconstruct the protagonist’s past and expose the institution’s central secret, so examining the environment matters as much as simply finding the next path forward. Danger is persistent, demanding alert movement and quick reactions when the building’s horrors close in. The campaign runs roughly eight to ten hours, giving the setting enough time to develop from a straightforward escape scenario into a more personal psychological nightmare.
Deca stands out through its commitment to sustained tension and environmental storytelling rather than relying solely on sudden scares. Its labyrinthine asylum, fragmented narrative, and emphasis on piecing together grim evidence give it a familiar but effective survival-horror structure reminiscent of smaller-scale horror titles in the Outlast and Amnesia vein. Expect a harsh atmosphere, disturbing imagery, and a deliberately stressful pace rather than a relaxed exploration game. Horror veterans who enjoy searching every corner for lore will get the most from it, though newcomers with a tolerance for intense scares can still follow its focused, linear mystery.
Screenshots
Installation
- Click the green button below to be redirected to UploadHaven.
- Wait 15 seconds, then hit “Free Download.” (Free downloads may be slower — upgrade to UploadHaven Pro for faster speeds.)
- Once downloaded, right-click the .zip file and choose “Extract to Deca.” (You’ll need 7-Zip for this.)
- Open the extracted folder and run the game as administrator.
- Enjoy! 🎮 If you see missing DLL errors, check the _Redist folder inside and install what’s needed.
System Requirements
- Requires a 64-bit processor and operating system
- OS: Windows 7
- Processor: Intel Core i7-2670QM
- Memory: 16 GB RAM
- Graphics: GeForce GTX 1050
- Storage: 19 GB available space
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Deca (v2021.07.16)?
After extracting Deca (v2021.07.16), navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 8.69 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Why should I run the game as administrator?
Right-click the game executable and select "Run as Administrator" to avoid save file issues and permission errors. This is especially important on the first launch.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
Try running in compatibility mode, install the latest DirectX runtime, or install the All-in-One VC Redist Package.
My antivirus is blocking the game — is it safe?
Antivirus false positives are common with pre-installed games. Temporarily pause your antivirus during extraction to prevent it from quarantining game files. You can re-enable it after the extraction completes.