Hi Chiara,
The game doesn't need to install. Just follow these steps below:
1.) Finish Download: Look for the file directory Long Road Ahead.
2.) Right click on [ LongRoadAhead.rar ], and use (WinZip) to extract the file to your preferred file directory.
3.) If WinZip extraction success. Open the folder, look for [ CVG_LongRoadAhead.exe ] application.
4.) Double click [ CVG_LongRoadAhead.exe ] You may start playing the game.
Please point out which part are you stuck, if you're still have any trouble playing the game. :)
Cheers & Sorry for any inconvenience cause.