State of Play's papercrafted puzzler and universal iOS app Kami is well worth unfolding a digital dollar for. The goal is to fold over strands within a limited number of moves to turn the board a uniform color. The same colored pieces connected will turn into the new folded color, and so on.

Kami is a bit strict, in that you only get one extra move beyond the optimal number of moves to solve the puzzle with a "pass." Thanks to the stunning paper visuals, I not only felt relief upon solving a puzzle, but also a sense of awe as I watched each puzzle animate. With 48 challenging levels bringing a couple hours of puzzles and more planned down the road, $1 isn't a bad investment at all. I hope they get enough purchases to make all their post-launch plans a reality.

Funny anecdote: George Buckenham (Hell is Other People) has released a free fan game tribute to Kami, after playing it at a dev meetup in London. red green blue doesn't have the same aesthetic magic or the ability to choose your colors freely. Instead, you are stuck to the rules of red:green, green:blue, and blue:red. However, the puzzles are similarly challenging.

For tonight's menu then, consider red green blue a fun and free browser-based appetizer, then move onto the main course that is State of Play's Kami. For dessert, you can enjoy IGF Excellence in Visual Arts finalist Lume HD for only $1 on iPad, or the smaller iOS version for the same price.