Beating a level in Opus Magnum is just the beginning. Sure, I built a machine to assemble that level’s target product, but how do I make it better? How do I make that machine of pistons, moving arms, ...

I'm not sure how Opus Magnum passed me by when it came to Steam Early Access last year. All I know is that I saw a split-second of it in a YouTube video a few weeks ago and have been obsessed since.

Opus Magnum is the latest game from the makers of SpaceChem. If you are familiar with the developers' work then you know what to expect: tough-as-hell engineering puzzles that you stick with for the ...