As you might have figured out from part 1, this list covers the games that made the most impact on me, and therefore it's almost only older games here. I'm one of those people that believe that the games today are better and smarter in almost every apsect, but that doesn't mean that they will move you in the same way they did when you were new to games. One of the genres that have had a hard time the last couple of years is adventure games, so I've been a bit generous and included some modern games that pehaps should have been categorized as action games.

Jens' favourite adventure games of all time
Out of this world/Another World (Amiga)
Day of the Tentacle (PC)
ICO (PS2)
Dune (Amiga)
The Secret of Monkey Island (Amiga)

Runner-ups
Grim Fandango (PC)
Infocom text-adventures (Amiga)
It Came from the Desert (Amiga)
Knight Orc (C64)
Loom (Amiga)
Maniac Mansion (Amiga)
Shadow of the Colossus (PS2)
Riven (PC)