[user104658]

Horizon Zero Dawn.

Enjoying it immensely. The first game I've played for AGES where the "exp" is essentially real and in what YOU are learning. You get better at taking things down as you go but it has very little to do with your gear or your level or in game skills... But in actually learning weaknesses and tactics. The first time you fight the Sawtooth is a bit of a nightmare... The second time is almost easy, not because your character is stronger, but because you know how to fight it. And yet if you slip up you can still be taken out by a lowly strider or watcher.

SO many open world games need to take note.