About
Small numbers. Big moves. Raise the Sum is a card game about making the most of your hand—and making the next player's job a little harder.
Blue cards add to your score. Green cards multiply it. Red and yellow cards send subtraction and division to the next player. A rare black zero can cancel an incoming attack.
Play one to five cards, beat the score on the table, or pass and save your cards for another round. First to win five rounds wins the match.
Pull up a chair
This browser edition is free to play, with no account required. Choose one, two, or three computer opponents. A short tutorial walks you through your first moves, and your match saves in the browser you're using.