Half Life 2 from Valve is a game based around knowing the player. Valve developers would block off obvious routes and as players took obscure, side routes, they would be going exactly where the developers knew they would go. Because of this, despite being a very linear game, it never feels that way.
Half Life 2 is also one of the few games to never take control away from the player, opting to eschew cutscenes, a very prominent game convention.
There is a heavy use of physics, from puzzles to weapons, such as the gravity gun.