Very, very underrated
Sean is my brother, but my review will be as unbiased as I can make it.
He researched a card game which was once very popular in America, but has since disappeared. No one to my knowledge has ever made a computer version of this game. He first designed a very cool deck of cards -- that alone is a lot of work. Then he made this very professional-looking and accurate reproduction of this extinct card game, added a lot of speech to make it more fun, and wrote an interesting and easy to understand set of rules and history of the game.
I guess next time he should just do a cartoon of people running around and randomly shooting each other, or a parody of ten year-old videogames, for that would appeal to the core NG viewer. It's sad.