Obviously, it's a logic-puzzle game, it won't be for everyone. But if you like that sort of thing, you'll enjoy this, and suddenly realize you've gone from basic logic-gate puzzles to having designed and built an 8-bit CPU.
The puzzle game/computer science educational game/simulator 'Turing Complete' just got a huge update. Haven't dug in yet, but it's the very best kind of educational game, the one that teaches you as a natural byproduct of play - rather than bolting a quiz to a platformer or something. Check it out!