All cards are placed face up on the table. Both players alternate buying one of the five cards sitting on top - with the aim to form pairs of the same color to resell as lucratively as possible.
During your turn you can either 1) buy one card or 2) sell two cards of the same color for an amount equal to multiplying their two values together. You also have one wild card which you may sell in place of another card once during the game.
Whoever makes the most of his or her starting capital by skillful buying and selling wins. But that is not as easy as it seems. A big part of the game is also preventing your opponent from getting valuable pairs. Ka-Ching requires tactical skill, perspective, and good timing when selling.
"Buy low. Sell high! Making money is the name of the game in this high stakes duel for dollars. Compete against your opponent to turn the biggest profit by strategically buying and selling stock cards. Buy cards at face value and then sell them in pairs for the greatest possible return, all while preventing your opponent from doing the same. Accumulate the most cash and you're in the money!"