Would be interesting to see Daves approach in these games, they do feel like designing a device.
Only thing is that these zatchtronics games usualy need to get a few hours in to figure out the game mechanics before you get to the interesting engineering solutions. First levels tend to be a tutorial and example of how certain parts work Just like you fist have to learn how to light up a LED with a battery, how to use a transistor, how RC circuits work etc... before you can be be tasked to design a circuit for blinking LEDs in a certain pattern.
Actually if a zatchtronics-ish game used a real circuit simulator as part of its game engine it could make a excellent educational game for teaching people electronics. Basically take a circuit simulator, add goal conditions, add parts restrictions, introduce gradual unlocking of more parts to avoid being overwhelming. introduce a scoring system, make a bunch of levels and there you go.