Item Codes For Spawning Cheat Stardew Valley Wiki Guide IGNPrehistoric creature egg is a sign of hope in the popular farming game. If you stumble upon a prehistoric creature offspring baby while scouring the stardew valley, bravo! You have discovered a rare find. The giant reptile's baby holds tremendous possibilities. Incubate your prehistoric creature offspring baby with care and watch as it grows into a magnificent creature. Celebrate the wonders of nature and the enigmas Stardew Valley has to offer.