Platinum Crystals are one of the many resources you can find while playing Once Human, and they’re a vital item to acquire during your playthrough. They’re required in a handful of crafting recipes, but you can also transform them into higher-quality resources which you can sell to vendors.
You won’t be able to obtain Platinum Crystals regularly. Instead, they only appear in a specific region, meaning you’ll want to focus on getting there. Once you reach that area in Once Human, the next thing to do is to know where they drop and the best way to obtain them. Although they drop from multiple places, some are far better than others.