Beat:
- Planescape: Torment
- Fallout
Pretty much beat:
- Morrowind (never did the expansions)
- Fallout: New Vegas (never beat the game, always uninstalled before doing the last quest, haven't played Dead Money and Old World Blues)
Have played, in order of "most played" to "less played":
- Dark Souls: ragequitted in Sen's Fortress.
- Deus Ex: had too many playthroughs going on at the moment, so I uninstalled Deus Ex in favor of finishing Gothic, PS:T and Wasteland 2. Made it to Hong Kong.
- Arcanum: gave up on it after a while, will replay it in the future. It was past a cave of dwarfs... or something, with red golems.
- Gothic II: performance reasons meant I stopped playing the game until I could enjoy it in its full glory.
Worth mentioning is that I liked all of them, despite anger management issues with Dark Souls, and Arcanums less-than-stellar lack of balance when it came to my build.
I love how much incline this poll is, btw. Every other "best ever RPGs" lists suck so much balls.