Factorio has a mod where you can program electricity circuits using assembly, I forgot the name. You place a "computer facility", connect to the signal network,

Factorio has a mod where you can program electricity circuits using assembly, I forgot the name. You place a "computer facility", connect to the signal network, then open a terminal to start programming. It's pretty cool because factories can be very complex, giving it real utility. And you can communicate over the wire with fair sophistication using items as signal symbols. The clock speed of the devices was limited to a few instructions per game tick.