Alan (Draknek) Hazelden is a prolific and talented indie game developer with a large catalog of challenging puzzle games, many of which use the Puzzlescript engine. http://www.draknek.org/games/puzzlescript/
This was entered into the 9th Casual Gameplay Design Competition where it lost the 3rd-place slot by something like 1/100 of a point.
There are no graphics, but there is no typing either, as there was in Zork and those other classic Infocom games. Instead, every few paragraphs the reader is presented with a multiple choice about how the plot should unfold. It’s a fascinating and unique genre.
The prior examples of ChoiceScript games I had seen were quite dramatic, so I wanted to do something more whimsical. With the 1980s on the brain I decided that “The Hitchhiker’s Guide to the Galaxy” would be an appropriate starting point and I tried to channel the spirit of Douglas Adams as I wrote the game.
I’m in discussion with the guys who wrote ChoiceScript about porting the game to a mobile app, but that is still in the works.
Related is this First replicating creature spawned in life simulator