Lightyear Frontier is an alien world filled to the brim with weird plants, animals, minerals, metals, and more. This beautiful farming sim game holds a collection of everything you'll need to upgrade, build, and maintain your new home planet. One of the many materials that need to be farmed for is something called a Blue Crystal. You won't need these early game, but finding them will become incredibly important around the middle point of the game. In order to make sure you have enough to go around to all of your builds, you'll need to head into the Yellow Forest to find Blue Crystals in any amount.