Not exactly new, but Limbo is a great game. The PC version is arguably better than the console versions since it can run at higher resolutions at 60fps.
It's a really good game. It has a really interesting visual style, it's really fun, and pretty challenging - but without being frustrating. It has a really great atmosphere due to the sound and visuals.
I would call it mildly challenging at best, tbh. Still a very nice game though. I always confuse that one with La Mulana... Haven't been able to sink much time into either one, but judging by what I saw both get a thumbs up from me anyways.
Yeah, it's not that hard, but there are a few parts that are a little tough. But like I said, it's never really frustrating, which I think is a good thing. When you die, it doesn't send you back very far, which makes it a little easier. I like games that are somewhat difficult, but not "screaming at the TV in rage" difficult. There's a point at which difficulty in a game makes it less fun rather than more fun. Then again, sometimes a difficult game becomes easy after you've played through it a thousand times.