Creating a horse with the rideable vehicle object and demonstrates some of the possibilities. This example is based on the 'Vehicle Testing Center' example in the Rideable Vehicles extension documentation written by Graham Nelson.
Riding A Horse was created with Inform and has IFID 9116A08D-BF02-4B4B-A012-E5C533916E9F. 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.