Opus Magnum is a collection of brilliant puzzles that I want to endlessly replay and re-solve, subtly encouraging my creativity as I hunt for better solutions. It's also managed to create a community around itself, one that encourages both competition and collaboration while ensuring Opus Magnum has no shortage of new challenges even after I had my fill of its campaign. It feels one-of-a-kind, and is without a doubt one of the best puzzle games I've ever played.
Hollow Knight is a Metroidvania with a well of content to discover that's as deep as its labyrinthine caves. The world of Hallownest is compelling and rich, full of story that's left for you to discover on your own, and built with branching paths that offer an absurd amount of choice in how you go about discovering it. With such a high density of secrets to find and fun, challenging enemies to face, it's worth spending every moment you can in Hollow Knight.