The Legacy of Persia Add-on for Crusader Kings III has 10 achievements.
As a character of a faith with the Fadaeyeen Doctrine, dispose of a Lowborn, a King and an Emperor
Fill Five Tax Collector slots with excellent Aptitude characters
Take the Iranian Resurgence ending in the Iranian Intermezzo Struggle
Take the Strenghten the Caliphate ending in the Iranian Intermezzo Struggle
As a character of Iranian Heritage, hold the Empire of Persia, Kingdom of Thessalonika, and Kingdom of Hellas
Loot four Illustrious-Tier Vizier Extravagance Modifiers from your Vizier
Have 10 vassals of a different faith than yours under Jizya Law
Starting as a member of the Umayyad Dynasty, hold the Empire of Arabia and the Sunni Caliphate
Take the 'Found a New Caliphate' foundation as part of the Abbassid Humiliation ending in the Iranian Intermezzo Struggle
Take the 'Dominate the Caliph' foundation as part of the Abbasid Humiliation ending in the Iranian Intermezzo Struggle