Genshin Impact : Chaos Core

To obtain a Chaos Core, you need to find and kill Humanoid Ruin Machines over Level 60+. Upon eliminating these automatons, they have a chance to drop Chaos Core. Anything above Lvl 60+ also has a chance to drop Chaos Circuits and Chaos Devices.

To get Humanoid Ruin Machines to become Lvl 60+, you need your World Level to become World Level 5 or higher. The most efficient WL to farm is WL 6, as enemies are between Level 64 and 84. This will give you the most consistent enemy Lvl past 60+. Anything below, you will find them, but not as often.

To get to WL 6, you need to have completed the following.

• Be on World Level 5
• Be Adventure Rank 45
• Clear Ascension Quest 3

You can only get these from the humanoid Ruin Machines. Killing the Ruin Sentinels, you will not get Chaos materials.

These automatons are primarily in the Liyue region, but you can find a few in Mondstadt and Liyue. The fastest way to get around is to use the Waypoints, kill everything in sight, and move on. The images below are where you can find Humanoid Ruin Machines.