Bumpyland II: the Bailey was created with Inform and has IFID F56DA9AC-0F1A-4EB7-A9F9-468B84561056. 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.