In Palworld, the Ancient Civilization Core is a rare, late-game resource primarily used in crafting advanced items like Ability Glasses, the Electric Egg Incubator, and the Ultra Shield. Currently, there are two main ways to obtain this valuable item:

1. Defeating the Raid Boss Bellanoir: Summoning Bellanoir requires finding “Bellanoir Slabs” in dungeon chests, which you’ll then use at a Summoning Altar. Once summoned, you have only ten minutes to defeat Bellanoir, with better chances for an Ancient Civilization Core drop if you face its harder version, Bellanoir Libero. Preparation is key here, as this boss is challenging and requires significant combat strategy to defeat in time.
2. Raiding the Rayne Syndicate Oil Rig: Located southeast of Palpagos Islands, this oil rig is guarded and includes various defenses. Upon reaching the rig, players need to find and open a Golden Chest for a chance to acquire 1–5 Ancient Civilization Cores as loot. However, this raid also requires strategic planning to navigate past defenses like lasers, making it a high-stakes, high-reward option​ BisectHosting ​PalNerd.

The Ancient Civilization Core is essential for crafting powerful items, particularly the Ultra Shield, which offers significant protection, and Ability Glasses, which reveal valuable stats of other Pals, enhancing your tactical advantage in the game.