I really enjoyed Dungeons of Dreadrock, because it's a game that knows exactly the experience it is trying to deliver and does so expertly. There are 100 levels of puzzles, all unique, with mechanics and solutions that ramp as your character progresses deeper and deeper into the mountain, while delivering on a cute storyline with clever 32-bit animation. There is an action element, but that is mostly a timing component to drive the mental aspect of solving the puzzles. It's hard to put down, but each level gives ample opportunity to do just that, so you can binge through as many as you like, then leave it to pick right back up again easily enough. The only drawback is once you're traversed all 100 levels, your time is done - but it was time well spent.