This is an excellent little card game where each player as a coloured deck of parts they can add to the growing machine. Each play has a hand of 6 cards and can place 3 cards on their turn into the machine.
Placed cards can go anywhere as long as the symbols on the left and right hand edges (input and output) match the cards it is going to connect to.
Special cards, Catalysts, start the machine also after 15 cards are placed the machine starts. Players can still add cards but at the start of each turn 3 columns of cards are flipped over, once all the cards have been flipped the machine is complete and put aside for scoring. Once 3 machines have been completed the game ends.
This is a light but very fun game, the artwork on the cards is superb. A good filler game for the start/end of a game session.
