The puzzles of Opus Magnum are something I've never quite played before. It asks of you to simply solve the puzzle in whatever way you see fit, and the difficulty of the puzzle isn't so much what the game asks of you, but what you ask of yourself. It tickles the engineering side of my brain. Once I've found a solution, I see potential for improving the design that lead me there, and I gradually iterate until I find a solution I'm happy with for the time being. The game smartly gives you multiple metrics to optimise for. It's not too hard to optimise for one metric, but optimising for two or more, that's where the challenge ramps up. I've still a lot of puzzles left, which I'm looking forward to solve and then refine the solutions for.