Hotline Miami was one of the most addictive games I've ever played. For that alone it deserves a mention for me.
Also Strong Bad's Cool Game 4 Attractive People... the most fun I've had with a point-and-click adventure game.
On 2/24/13, MB1025 said:
You know I was always wondering why no one ever used the dollar sign for $ony, but then I realized they have no money so it would be pointless.