How do you use the Unity Ripper?
1. Download the ripper here: https://github.com/mafaca/UtinyRipper (Click "download now").
2. Run "uTinyRipper.exe", and drag the "Rooms_Data" folder into the window.
3. Click on "Export", and select where you want to extract the project files to.
4. Download unity 5.4.5p5 here, and open the exported project files in the editor.
It seems that uTinyRipper is unable to export scripts and shaders properly, so if you try to play the game in the editor, it won't work. A better way to do this is to Download the already existing project files from the creators github, and then open them up in unity.