Funny, smart, engaging, with a battle system that's both simple and complex, and same goes for the story, walking from the subtle to the sublime.
But most of all this is a game about people, about character portrait and development that showcase the complexity of human nature with very small means. I'm amazed how much entertaining and intelligent dialogue they managed to fit into a single game.
Also this is a game that captures the everyday life and inserts it in a narrative about conflicts and politics, that makes the storytelling all the more interesting, beautiful and -- really -- something that one can relate to. Not just a game that made me laugh a lot, but one that touched me.