I’ve not even remotely spent enough time with this to offer any meaningful impressions but, for now, let me just say that I’m loving the chance to build beautifully intricate machines of logic.
That’s only a level from World 3. There are many more worlds. I’m struggling to imagine how convoluted some of the end-game challenges will be.
Anyway, if that looks & sounds right up your alleyway, there’s more info on the game’s website.
This site has now moved! Go to 
I impulsively got this last night. Looking forward to trying it later