Card Keeper

Card Keeper shows you 20 sports cards one at a time. For each card, you have 4 seconds to decide: KEEP (add to your collection) or PASS (skip it). Each card you keep costs money from your budget. Your goal is to maximize the total value of your kept collection while staying within budget. Cards that cost more to keep are generally more valuable, but the real skill is knowing which cards offer the best value-to-cost ratio.

There are three difficulty levels based on budget: Easy ($500 budget), Medium ($300 budget), and Hard ($150 budget). With less budget, you need to be more selective about which cards to keep. Hard mode forces you to be extremely strategic, only keeping the absolute best value cards. The Daily Challenge uses Medium difficulty so all players have the same experience.

The Daily Challenge presents the same 20 cards to all players on a given day, using the date as a seed. This lets you compare your collection value with friends or other collectors. Your best daily score is tracked separately from your overall best. Play the daily challenge to compete on an even playing field.

Your grade is based on the ratio of collection value to budget. S grade (Card Master) means you got 20x your budget in value, A (Sharp Eye) is 12x, B (Good Scout) is 7x, C (Decent) is 4x, D (Needs Practice) is 2x, and below that is F (Rookie). Higher grades require knowing which cards are valuable and managing your budget efficiently.

Yes! Press A or Left Arrow to PASS, and D or Right Arrow to KEEP. Keyboard controls make the game faster and more fluid, especially when the timer is running low. You can also tap the on-screen buttons on mobile devices. If you run out of time on a card, it automatically passes.