Planetscape: Torment is an isometric CRPG set in the Dungeons and Dragons universe. It has gained a reputation over the years for its writing and setting which elevate it to "essential" status in the genre, and after playing it personally, I have to agree. It's a bizarre journey of discovery that's fascinating from beginning to end and it's probably best if you go in as blind as possible.
However, gameplay wise the title is not nearly as good, I'm not a fan of real time with pause and most enemies are honestly only there as fodder for the player, very few encounters are actually challenging or interesting. For this reason I feel like it's usually better to solve things non violently, not to mention that way you get more interesting stuff to read.
To conclude, I would recommend this game to pretty much anyone unless they dislike reading, but that makes me sad for them more than anything because reading is radical.