I recommend SpaceChem (Steam or GOG DRM free). It's all about input/output systems. On some stages you have to link multiple systems together. I think you'd like it.
Here's an example, a horribly overcomplicated solution to a puzzle by me.
RF4: I'm up to the Floating Empire. Am I almost done with the main story yet? Lol. I'm like 40 hours in at this point but I thought the game takes 80 hours to beat?