@eccentrix: The Blackwell series is another one that just wrapped its' arc, if you like adventure games.
I haven't played part 5 but I've heard very good things.
The Deponia games are another, but I found those games hard to stomach given how awful Rufus is as a character.
Then I think the most recent Tex Murphy does this as well for that series.
And perhaps my favorite of this type the Quest for Glory games, which wrapped up everything in QfG V.
I think it's fairly common for adventure games to do this. Definitely something you don't often see in AAA games.