I own nearly all of these games - only the dark eye and Nethack is missing. I played the others and must say:
Loom: is a quite short game (you can manage all in about 2 hours), but I played it at least 4-5 times now - the story is really great!
The Neverhood: A funny but hard game - but it´s not so big fun as the others - I like the claymen-idea.
Realms of the Haunting: One of my favourite
. The mood is one of the scariest I know - the story extremely complex and over 2 hours of films with good actors makes it one of my biggest pearls. Undying is from the same coder/designer and has very much similarity with newer technology - but it cannot reach the scary mood of ROTH.
Outcast:
The best of them all
- the best (voxel) grafic, best story, best ideas (own language you have to learn to understand all that´s been said) best artificial intelligence, cut-scenes, game-music, dialogs and voice-acting of them all. I especially like the outcast outtakes:
http://www.youtube.c...es&search=Search that have been the first in a game as I know (the next one was Summoner). It´s a pity that Outcast 2 has been canceled.
Planescape Torment: Also a very good game with a very unique & epic story. One of the best RPGs I own. You cannot die ... because you are dead
! Noting else to say: Play it!
Beyond Good and Evil: Makes very much fun, has great gfx and it´s rather good for a jump & run/shooter/Boat-Simulation game, but some designs are disturbing me (a talking pig?). Quite cool to play, but I still prefer MDK 1 & 2 that are Muuuuch more fun)
Vampire - Bloodlines is also mentioned. I haven´t played it to extensive to say it´s really very big or not - I could change my mind when playing it a few hours longer the next time, but till now I would say the first part is much better in gameplay and story.