Woof is an ADRIFT 4 interactive fiction game and is © 2004 by Roberto Grassi.
Review by David Welbourn (originally posted at Baf's Guide)
In this game, you play a dog in your master's backyard. There's nothing you must do, but there are a handful of dog-like things you can do to gain points. Unfortunately, most of those optional tasks aren't well hinted at; you'll have to play a bit of read-author's-mind and just guess.
The game is also hampered with a time limit, missing room descriptions, and occasional poor English. But you do get to play a dog. That's gotta count for something.