Corgi Pileup is a trick-taking game in which only the last trick counts. During each trick, you must climb by playing cards greater than or equal to the highest card played so far, or else play your lowest card. Each round, you score your final card and increase your score. Rounds are played until someones score exceeds 15. All players whose score exceeds 15 lose, and the remaining player with the highest score wins.

In the "Underdog Variant" the game ends as usual, but the player with the lowest score wins!