- Kentucky Route Zero (http://kentuckyroutezero.com)
- Sword and Sworcery (http://www.swordandsworcery.com)
- Machinarium (http://machinarium.net/demo/)
- Botanicula (http://botanicula.net)
- Psychonauts (http://www.psychonauts.com)
List of good adventure games... http://www.gog.com/games/adventure##sort=bestselling&page=1
Dreamfall Chapters (Grab The Longest Journey and [first] Dreamfall on GOG.com)
Almost all of Telltale Games' catalog