I downloaded the trial of this last.

I played through on survivor mode (i.e. difficult) and it seemed very good.

It's all about using resources wisely and not using too much energy etc...

I was a bit disappointed with the few bits I cam across that had quicktime events in (i.e. if you're climbing and you run out of energy you can put "maximum effort" in by rapidly pressing the RT to give yourself a bit more time befor eyou fall off). This happens if you enter into a fight with someone, when you're climbing things, when you want to sprint, when you need to open a gate with a crowbar etc...

Story seems OK too although I didn't really get any backstory details from what I played of the trial.

Supposedly it gets a bit same old same old halfway through, according to a couple of reviews I read at least