[NanoCoaster]

Definitely recommend Turing Complete. I've been playing it off and on over the last few weeks, just finished the first working CPU. It includes small hints and solutions for most levels, so if you get stuck, you'll always have a way forward. The interesting thing is, for a lot of levels, you can just google the component you're trying to build and use actual logic diagrams as guidance.

The game makes the whole topic a bit easier to grok with its visuals and the ability to step through your circuits when they're running. So, great fun. But beware, if you've been bitten by Factorio addiction, you might be in danger of missing a lot of sleep :)

Also, as some other comments mentioned, I highly recommend the Zachtronics games. Exapunks is amazing. But they're quite different, they're more like puzzle games about programming.