Exploring the vast deserts and lush oases of Ptolemaic Egypt in Assassin's Creed Origins reveals a deeply personal side quest that connects Bayek to his late son, Khemu. Scattered across the expansive game map are twelve ancient monuments known as Stone Circles, each presenting a celestial puzzle that unlocks hidden memories. Finding and aligning these constellations is essential for completing the emotional Bayek's Promise side quest and securing the Stargazer trophy.

Starting the Celestial Journey in Siwa

Your quest begins naturally in the starting region of Siwa, where the very first monument is located just southwest of the main village. Interacting with this ancient arrangement triggers a touching cinematic where Bayek recalls stargazing with his son, establishing the framework for the remaining puzzles. Completing this initial location logs the quest in your inventory, allowing you to freely explore Egypt to find the remaining eleven sites.

After leaving the oasis of Siwa, players should venture into the neighboring region of Iment Nome to continue their search. This sandy territory contains two distinct stone structures situated in the western dunes, requiring players to scan the horizon carefully to spot them. Aligning the stars at these early locations provides necessary experience points that aid in early character progression.

Venturing Into the Remote Deserts

To discover the remaining monuments, players must travel to the most isolated environments on the map, including the harsh Qattara Depression. Nestled within the rocky terrain of this arid valley lies another circle that requires players to match a unique constellation pattern against the night sky. Exploring these desolate zones highlights the exceptional environmental design and historical scale that makes the game world feel truly alive.

Further tracking leads players south toward the isolated regions of Faiyum and the Isolated Desert, which house multiple hidden star arrays. Finding these locations requires using Senu to gain an aerial view, making it much easier to pinpoint the exact locations amidst the vast topography. Each successful alignment offers players deeper lore regarding Egyptian mythology and Bayek's personal history.

Unlocking the Ancient Armor Reward

Many completionists choose to search for all twelve sites because finishing this grand tour grants access to a legendary surprise reward. Once the final constellation is successfully aligned, players must return to the initial starting point in Siwa to advance the narrative. This unlocks a hidden mechanism within the Sphinx in Giza, provided you have also gathered enough silica from ancient tombs throughout the land.

The ultimate reward for your dedication is the legendary Isu Armor, a highly coveted cosmetic outfit that gives Bayek a futuristic appearance. Unlocking this secret armor set represents one of the final endgame achievements for dedicated players looking to fully complete the game. Navigating the ancient structures and finishing this stellar mystery provides an incredibly satisfying conclusion to Bayek's emotional journey.