RiME is an atmospheric puzzle game that offers a great gameplay experience despite having no dialogue. The world itself is very open, and players are free to pursue or ignore important and optional quests as they please. It's fairly easy to ignore the optional ones, though most of the required puzzles do give the player a good deal of guidance in one form or another.
However, puzzles are only part of the adventure here. The visual style makes exploring every inch of the island -- and trying to achieve the trophies -- as much fun as progressing through the game itself. Yet you will want to progress and see your adventure through to the end.
One of the best things about RiME is actually the story -- which is interesting, considering the fact that it only really starts to become a focus towards the game's end. There won't be any spoilers here, but it certainly gives you a different perspective on the game and protagonist.