1. I wouldn't call it a game unless it has a gaming element. Then, I wouldn't value it for its simulation capabilities as much as for its gaming properties (entertaining, addictive, not too easy, not too hard? etc.)
The reasoning is that if you need a logic gate schematic capture & simulator there are tons of professional ones that can be had for free, both open source and commercial.
2. Also, I wouldn't call it an educational game unless it actually teaches the concepts of EE, but judging from the website it doesn't seem to do so. Even the video example has no audio (unless it's a problem on my part) so you either know all the concepts already, in which case this game has no use for you, or you are left scratching your head more often than not. (Why does that rising edge detector thing have 3 NOT gates in series? Why not 1 or 5? and so on.)
3. Manually drawing wires gets tedious very fast. There are many reasons why professionals use HDLs almost exclusively nowadays, but as a hobbyist I can already tell that not having to draw wires (and keeping them ordered after every change) is certainly one of them.
4. The graphics are fine for an educational circuit simulator, but completely miss the mark if this is intended as a game. Look at SpaceChem for an example of a circuit-like game done right. I would love to see a game like that, except based on logic ports instead of automatons.
Hope this is taken as constructive criticism, from someone who is potentially interested in this kind game. Keep up the good work!