The Daily Loyalty Roll is a 90-day-long program that allows you to receive various rewards, such as Units, Boosts, Resources, Sapphires, and other valuable Items for each consecutive day that you log into the game. The Rewards are sent to your Castle instantly upon login. In order to check to see what you have received, tap on the Calendar icon at the bottom of the screen. You will see your Reward in the Daily Loyalty Roll window highlighted in green with a check mark on the left. Any Units received will be sent directly to your Catacombs, while Sapphires, Resource Packs, and other Items shall be stored in the corresponding tab in the "My Items" window.
Upon successfully reaching Day 90, the cycle will restart from the very beginning. Thus, you will have the opportunity to receive the same valuable bonus Items again!