Left 4 Dead has some depth but I'm not sure I'd call it a deep game.
TF2 however has lots of depth and gets deeper with every update. I've yet to play an FPS that allows as many tactics and strategies as TF2, not sure if their is one. I agree that most FPS are just point and click games.
As for Wii Music I haven't personally played it but knowing Nintendo I'd be suprised if it doesn't have any depth.
Nov 2016 - NES outsells PS1 (JP)
Don't Play Stationary 4 ever. Switch!







