For those of you worried Enslaved will be a muddy black-brown mess visually like other games featuring post-apocalyptic settings (Fallout 3 comes to mind), rest assured Enslaved is a beautiful and COLORFUL!
The game itself is a mix of platforming and combat, coupled with occasional brief cutscenes. Combat is fluid and challenging. Monkey (the man on the game cover -- the character you control) battles primarily with a staff. Slow, strong moves, and fast, weaker moves can be chained together as well as other powered-up abilities you can acquire with the game's upgrade system. You can also use the staff to shoot at enemies from a distance. Thankfully, you usually have to apply some thought to battles as some enemies frequently block, others hit very hard, and others attack from a distance.
Visually, Enslaved is impressive. The environments are vibrant and detailed. Enslaved truly makes ruins and wasteland look beautiful. The music of Enslaved is just as great. It has a haunting orchestral feel at times which fits perfectly with the desolate world Monkey and Trip inhabit. Natural, believable VA work rounds out the superb audio of Enslaved and enhances the characters.
My only issues with this game are on a technical level. My largest issue is with the camera, sometimes it works, other times it feels way too close or unresponsive. While not often, I do experience frame-rate drops at times. Also, there are occasional pathing issues with Monkey (you'll be positioned perfectly for a jump but the game simply won't recognize it), or when an enemy awakes from a stun, sometimes the game won't recognize your input till after the enemy lands a hit on you. These issues are nothing serious and should not detract too much from the beautiful visuals, engaging storytelling, and satisfying gameplay.