This stealth action game is nonetheless pure awesomeness. I mean going undetected is cool.

User Rating: 10 | Tom Clancy's Splinter Cell Double Agent PS3
If you love stealth type games like me, this one is for you because these type of games dont only test your movements, it also testes your brain. Like how you say? You are in a casino let's say and there are 4 guards patroling. You dont want to go in and start making stabs. No, you watch their movements and go in for 1 guy at a time when the timing is right. Going in and just killing, that might kill you because if they don't know you are there, they will be unrealizable of your action of surprise. 3 things that I know and am willing to share are.

1. Hide in shadows whenever you see darkness.
2. Walk slowly, keep crouch because you will make less noise.
3. Be smarter than your enemies.

When you are smarter than your enemies, you have the full advantage of surprising them while still remaining undetected.