There's a certain type of SF literature which is near and dear to my heart - initially small situations opening out upon a rich and unknowable scope of universe. Olaf Stapledon and Cordwainer Smith are both rather good at this.
So after coming across this sort of language in a text adventure, I couldn't not but give it five stars. Every word is well-chosen and matched for the mood. Recommended for a meditative midwinter's night.
The definition of well-implemented. A beautifully simple game in which just about anything you can think of will have a witty response. As someone deeply interested in the intricacies of what can be done with a parser, it fascinates me.
Besides, it's a lot of fun.
Confession: I never played any of the original versions, instead coming on board with the BBC Radio 4 20th Anniversary Edition, which is in many ways kinder to the player; it came complete with the game itself, but also some simple but pleasing graphics, interesting game design notes, and all the Douglas Adams hints. That page is still here, although the game is currently hosted here. (Apparently this is the 30th Anniversary Edition, which is like the old one but with a shinier interface and, erm, the ability to tweet from in-game. Perhaps just as well, if the brush-up allows the game to be around for another ten years.)
Anyhow, it's gloriously implemented and perfectly atmospheric. Definitely worth a try if you're at all a fan of the radio series/books/movie/stageshow/whathaveyou.
It's a solid premise - childhood creepypasta videogame hilarity - and I would rate it higher but it also induced the only kernel panic I've ever seen. Leading to an amusing few minutes while I was rebooting and trying to figure out whether I was dealing with a computer game or a cunningly disguised computer virus.
((Spoiler - click to show)The endgame dynamics were a bit much for my OS, apparently.)
So, genuine sense of terror achieved! Mission accomplished.
Recommended for play: go all out and play at midnight. In a thunderstorm. With the lights off.