What's your adventure game comfort food?

What's that one adventure game you can just boot up and have a great chill time with? Mine would probably be Day of the Tentacle. It's such a wonderful, colorful world to inhabit, and all the characters are lively and oozing with personality (no Sludge-o-Matic pun intended). I could spend hours just walking around talking to characters and not even think about solving any puzzles.

What's the one game you'd boot up to just relax with?