Card Rails: Exchange is all auctions all of the time! Players blind bid to win Railways they can invest in, so maybe they can win big at the end. But sometimes, losing a bid can be a better long-term investment. It just depends on what's in your hand! Card Rails Exchange is a 3-5 player 90-card train game played in about 30 minutes. Exchange is about trying to balance the bid you're making with the cards in your hand, all so you can invest in the Railway card in front of you. Players get points based on the number of completed Railway cards and which investment cards they used to complete them! Most points wins. Card Rails Exchange is a standalone game in the Card Rails line. —description from the designer