Two of the crafting materials you need to find in God of War for PS4 are Oblivion Stone and Unstable Ore. To begin with, you'll find these resources tricky to find.
Both of them are rare, but they can be found by partaking in Treasure Hunts. As you go about God of War journey, you'll discover Treasure Maps. These maps yield a clue and point you in the direction of where to find caches of loot.
By solving riddles, you'll find a treasure chest, and the rewards are usually fantastic. As well as earning Hacksilver, Enchantments and other rewards, you'll usually gain some crafting materials like Aegir's Gold and Leiptr Alloy.
Within these treasures you'll also find Oblivion Stone and Unstable Ore. So, keep picking up those Treasure Maps, solve the riddles, and you'll get all the resources you need to upgrade Kratos.
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