Great free puzzle game. The gameplay reminds me of Spacechem, but with some differences. Spacechem is manipulating elements, this game you manipulate bits to create your desired output. The game reminds me of the logic design courses I had to take, trying to design circuits.

It's a pretty amazing game and will certainly challenge you. The major issue is getting started and getting your head around how the blocks function and it can feel like after every step and completed task you are right back to square one again trying to solve the next task. Does this make it a great game or simply frustrating ? So far I am enjoying trying to work solutions out and waver towards recommending to try this game out. If you play the factory type games and enjoy optimising systems you will absolutely love this, from a basic premise it does some advanced tricks and each step is completely different from the last so you do not feel like you are rehashing the same ground, which is a rare thing...
Highly recommended

Be warn... This game is VERY hard. Though if you want to cry in pain, this is for you!