This is by far one of the best puzzle games I have ever played. It makes you unlearn everything you knew about traditional puzzle solving. Once I sat down and started playing it for the first time I was up until 5am because I just didn't want to stop! It took me about 7 hours to get through the game, but I missed some puzzles and hidden areas.

This game is worth every penny of 15 bucks. I managed 12-14 hours for the first storyline playthrough, and NG+ adds challenging twists to a new game. Though most people could probably rush the storyline in 3-5 hours I would suggest against it. You wont unlock all the seals unless you explore.

There are no real boss battle because this is not a hack and slash game. They made the right choice here because the only viable way to do a boss fight in this game is quick time events, and they kept them down to a minimum. It is definatly the best stealth game I have ever played.

The ending felt a little lack luster, but that could be because the entire game was amazingly fun, so it set a high standard. Great cutscenes, great story and great voice acting. The AI is a bit predictable, but the levels are set up in a way that simply memorizing their patrols will not get you through a tough spot. It takes planning and well timed actions. Sometimes unconventional means with be your friend.

After you unlock everything there is still plenty of fun to be had thinking up new ways to freak out and kill the guards. I strongly suggest you give all equipments and "Styles" a try!

This game is very basic and has very low system requirements. Maps are small and feel fair and fast paced. It feels very refreshing to just jump in and start fragging. Needs some work on its network capabilities, but for the most part all my hits were registering.