There are plenty of optional activities to complete and over 100 collectibles to find in Assassin's Creed Mirage, so it's safe to say the game will keep players busy for some time. While exploring 9th-century Baghdad's massive landscape in Mirage, players will eventually come across peculiar riddles called Enigmas. These riddles come in two different forms (either letters or maps) and lead to valuable treasures that players can use to customize Basim's appearance.
Source：https://www.cbr.com/assassins-creed-mirage-enigma-solutions/
