I played several interactive fiction games (aka IF) while on vacation and found “Violet” to be the most enjoyable. The setting is simple, the dialog/narrative is very well written, and the goal is something that you feel compelled to achieve. I even laughed out loud in several places. Use the link above to play online or play it on your iPhone or iPod using Frotz.
I can’t help but think that a lot of the gameplay we enjoy so much in modern games comes from IF. The narratives and dialogs of Bethesda’s games definitely come to mind.