Many files from third-party sites are password-protected. Common passwords for that specific site often include the site's name.
You can safely download the game through official digital storefronts like Steam or GOG.com . System Requirements: OS: Windows 7, 8, 8.1, 10 (64-bit) Processor: Intel Q9650 / AMD Phenom II X4 940 Memory: 8 GB RAM Graphics: GeForce GTX 660 / Radeon 7870 (2GB VRAM) Searching for Files download-black-mirror-apun-kagames-biz-part1-rar
The Black Mirror video game series is a gothic horror adventure franchise. The 2017 entry is a reimagining of the original trilogy. Many files from third-party sites are password-protected
If a file is labeled "part1," you generally need to have all parts (part2, part3, etc.) in the same folder before you can successfully extract the contents. System Requirements: OS: Windows 7, 8, 8
You usually need software like WinRAR or 7-Zip to open .rar files.
For your safety, I recommend using the Official Steam Store to ensure you are getting a clean, working version of the game.