Fluxx

Fluxx is a card game in which only change is constant. The rules are simple at first, with just two to start, but new ones are added with every card played, so the game keeps shifting as you go. Even the goal is not fixed at the start: it is set by goal cards that come into play during the game.

To win, collect keepers and try to match the current goal. As soon as your keepers fulfil the goal, the game ends and you win. Action cards are played once and then discarded, while keepers stay in front of you. Each turn you draw and play at least one card, and the rules decide whether you discard more.

Designed for 1 to 6 players aged 8 and up, the game takes about 10 to 30 minutes. The box contains 100 cards and a rulebook. Fluxx won the Mensa Select award in 1999.