I was a big fan of thatgamecompany's unique games: Flower, and flOw before it, so I knew that Journey would be no ordinary game, if you can even call it a game at all. It can be played in one sitting for about two hours, but the almost transcendental experience you get from that short time is truly worth it. Journey is not for everyone, and it can be difficult to describe since you really have to do a hands-on in order to understand the game.
You play a desert wanderer in Journey, with one simple objective: to reach that mountain in the distance. Along the way, you'll have to solve fairly simple puzzles and avoid some frightening dangers. Unlike most games nowadays that rely on heavy textures, Journey's visuals have smooth, clean lines, but the overall effect is stunning and breathtaking to behold; the desert sands seem alive, beautiful and dangerous at the same time, and you can almost feel the desolation.
The online play used in Journey is also unique; you'll randomly meet other online players, but you won't know who they are, and you can only "talk" to them through short bursts of musical notes. You can travel together, and help each other out with the game's fairly simple puzzles. In a way, you bond with this other stranger, and nothing can compare with the exhilaration you feel when you and your companion make it through the end.
Journey gives players who finish it all the way through a deeply moving experience, something that you rarely see in gaming today. It's funny how a game with no scoring, no combat, and no voice-overs--just incredible, soaring music--turns into pure awesomeness that's hard to beat. You can always repeat the game when it's over, but the memory and emotional resonance of your very first journey will remain. A contender for Game of the Year.