A Tier Credit at Caesars measures a player’s activity level. You must play slots, table games, or poker with your Caesars Rewards card inserted to earn Tier Credits.  The more you play, the more Tier Credits you earn, and the higher your tier status becomes. Tier status determines your benefits, such as room discounts, priority service, and free play.  For example, Diamond members get a 15% discount on rooms, priority check-in, and $100 in free play.  Remember to use your Caesars Rewards card when you play to earn Tier Credits and maximize your benefits.