Puzzle games should ideally make you feel more clever than you actually are. If you were really that clever, you'd be the one designing the puzzle, after all. But a clever puzzle designer can somehow imprint their own puzzle designey cleverness into the fabric of the game and pass it on to you.

Carto does that. It's incredibly well-designed, with a deviously simple core mechanic that the designers get squeeze every ounce of mileage out of before the end. In short, each level is made up of parts of a map, which you can reconfigure at any time to access new areas and even construct new landmarks.

It works amazingly well, and there are a lot of clever ways the game plays around with this simple idea. It's honestly not very unlike Portal in how it teaches you to think spatially, and consider how to manipulate your surroundings to progress. I can't think of much higher praise for a puzzle game.