Purple

>INVENTORY - Paul O'Brian writes about interactive fiction

I also had trouble with a number of the puzzles, and was unable to figure them out without a walkthrough, but I can't tell if that's because of the stumbling English and buggy code, or the difficulty of the puzzles, or just my own denseness. On balance, I'd say that Purple is a very rough version of what could become a good IF vignette. After it's undergone a few vigorous rounds of beta-testing, you might want to give it a try.