I can suggest the great little (Factorio inspired) game Shapez.io on Steam to play with your son. A lot of the "principles' of Factorio are in there in an abstract way. Check it out (it's also super cheap)

I just had to come here and make a massive tip of the hat to the team... The graphics look gorgeous, and I mean - AMAZEBALLS gorgeous... and the most amazing jam packed goodie packet of FFF I have ever read... Plus dropping the bombshell of Factorio Tuesday (I might have to face a death or something...