Have you checked out Em Short's work? A lot of her pieces are more fiction-heavy than "gamey", but if you're looking for a more Infocom-esque experience then Co

Have you checked out Em Short's work? A lot of her pieces are more fiction-heavy than "gamey", but if you're looking for a more Infocom-esque experience then Counterfeit Monkey is an absolutely stunning example. Going down another thread, have you been keeping abreast of non-parser IF? There are a lot of incredibly polished, beautiful pieces of choice-based IF for mobile platforms (check out 80 Days if you haven't), as well as a whole lot of wonderful, incredibly deep and personal works happening in Twine.