Click the download button. The file size is roughly . Do not interrupt the download.

Many users report that the game crashes or refuses to open. Nine times out of ten, this happens because they tried to run the game directly from inside the compressed Download a free file extraction tool like if you do not already have one. Right-click the downloaded game folder and select Extract Here Extract to [Folder Name]

Use a File Manager app to find the APK in your "Downloads" folder.

It sounds like you're asking about installing the fan game — an unofficial point-and-click adventure made in the style of classic LucasArts games.