Fluxx is a card game in which the cards themselves determine the rules! Each player starts the game with three cards in their hand. On their turn, player draws one card, then play one card. By playing cards, you can put new rules into play that change numerous aspects of the game: how many cards to draw or play, how many cards you can hold in hand or keep on the table in front of you, and even (most importantly) how to win the game!

Dog Fluxx features canines and familiar Fluxx gameplay, with the game featuring eleven Dog breeds, The Human, a Fire Hydrant, new Actions such as "Bark At It Until It Goes Away" and "Did You Bring a Plastic Bag?", and new Rules such as "Live Dog Bonus" (which has you draw an extra card each turn while a dog is in the room).