Goose, Egg, Badger

>INVENTORY - Paul O'Brian writes about interactive fiction

Best of all, though, is the extremely clever conceptual gimmick at the heart of the game. It was subtle enough that I got through and enjoyed the whole game without recognizing it, but interesting enough that once I figured it out, it opened up new vistas for me. I definitely recommend playing this game, and I recommend not typing SECRETS until you've played through once. Then play it again -- if you're like me, you'll be too entertained not to.