how can i open the actual game file to play the game
Viewing post in Beware the Shadowcatcher comments
First, download the ZIP file.
Then, you'll need to extract the files. This is done by right clicking the downloaded ZIP file, then selecting "Extract All..."
After you extract the ZIP file, click on the BewareTheShadowcatcher application, which is usually the third file in the folder by default.
That should be it.
And again, this is all assuming you're using Windows.