Well, since you brought it up, I'm gonna take a moment to shill for two games I feel need more attention(I'm not in any way connected with either developer):
-Kentucky Route Zero. It's a wierd voxel game that could easily be called a "walking simulator" and yet, it's so engaging. You play a deliveryman with a dog and an old beat-up truck, looking for an address that doesn't show up on GPS. When you stop at a particular looking gas station at sunset, your told "You need to take the Zero", the Zero being an underground highway that runs through the caves under Kentucky. The rest of the game is driving around the Kentucky backwoods on a long summers night, sometimes on the surface and sometimes along the zero, trying to figure out how to reach your destination and meeting weird people along the way. It's also kinda surreal, with vague hints of the supernatural and ghosts but nothing explicit or frightening.
There aren't really any puzzles to speak of, it's pretty much exploring, meeting the strange people who are out in the kentucky backwoods at night and just enjoying the journey. There's a sense of magical realism to it that I found engaging. My only gripe is that it's still on episode 3 of 5 and it's been a while since the last episode was released, though little mini-episodes have been released in the meantime.
-Superbrothers: Sword and Sworcery EP. It's hard for me to describe this. It's a hero's journey, done in retro pixel form, with a prog rock soundtrack and the characters talk in twitterspeak(Without the insults). It's only 4 hours long but what there is has a certain appeal to it(for me anyway). Among other things, part of your quest is to collect a series of "Not Triforce"s to be able to defeat a demon that haunts the mountains nearby, but before you can collect each one, you need defeat each one in a rythym battle, or as I like to call it "Fighting the Album Cover to Pink Floyd's Dark Side of the Moon, complete with drug-inspired soundtrack". It's Simplistic, atmospheric, yet charming in it's own weird way.
Though maybe it's a game that only really appeals to a few people and apparently I'm one of few people who it clicked with, because a lot of people said they just couldn't get into it.