I don't know if this is the kind of answer you want, but to this day I swear that playing Kula World (also known as Roll Away in the US, I think) made me smarter. It requires spatial reasoning, which maybe isn't what you're looking for. The game starts being ridiculously simple, but the difficulty ramps up fast, and it forces you to think carefully about your movements. And since the scenarios are de facto discrete, you don't need to be mindful about precision, just focus on the logic of the puzzles themselves.