The world of Brothers is rich with color and life. Strangely enough, there's no technical or artistic gimmick at work. It's simply a well-realized depiction of a Nordic-inspired fantasy world. What makes it so fascinating is the contrast between the picturesque beauty of the world and the quest of the two brothers, which is suffused with melancholy and near-despair. It's so enticing that you'll want to just soak it all up. The game seems to know it, too; benches are littered around the world, and having both brothers sit in them for a spell rewards you with a truly lovely view.
For me, wordless storytelling is the best kind of storytelling. Many of my favorite games and short films thrive on this tactic. Journey is a particularly great example: that final, glorious ascent up to the top of the mountain is enough to fill your heart with joy until it bursts. And who among us hasn't been touched to the core by the "Married Life" montage from Up? The yarn spun in Brothers is an excellent example of wordless storytelling. Everyone in this world vocalizes, but it's all unintelligible. Note that I did not mistake it for gibberish: all of these vocal expressions have meaning, and you can tell in the voice acting. And it only gets better with a flourishing, rich soundtrack that is every bit as capable of playing your emotions like a piano.