I ragazzi di Barriera was created with Inform and has IFID F9416FB9-8B8F-45FE-98F8-35DA6198F218. To play a work like this one, you need an interpreter program: many are available, among them Zoom
for Mac OS X and for Unix; Windows Frotz or Windows Glulxe for Windows.
Or you can play without downloading anything by following the 'Play In-Browser'
on your web browser.