Voidwyrm Egg

The Voidwyrm's egg in both games

ARK: Survival Ascended calls this item the Fertilized Voidwyrm Egg, while ARK: Survival Evolved names it Voidwyrm Egg. The ASE item text simply calls it a TEK wyvern egg from Genesis 2, and the ASA text reads: "Tremendously nourishing by itself, this egg provides extraordinary nutritional value in many cooking recipes." The ARK Wiki ties the egg to Genesis: Part 2 and notes that its earlier name, Tek Wyvern Egg, was later changed.

Where the eggs come from

There is no unfertilized Voidwyrm egg. The wiki says these eggs appear after two Voidwyrms have mated, and each can hatch into a baby Voidwyrm; in the past, Voidwyrms could lay the standard unfertilized Wyvern egg instead. Taking an egg while wild Voidwyrms are near makes them hostile, and they will attack.

Incubation needs

Hatching takes 4h 59m 58.56s. The egg needs between 80 and 90 °C (176 to 194 °F) and starts losing health outside that range. An Egg Incubator set to the best temperature can shorten incubation by up to 20%. A female Voidwyrm needs between 18 hours and 2 days before she can lay again.

Food, kibble and taming

The egg is edible, and it is also an ingredient of Extraordinary Kibble. The wiki lists that kibble for taming creatures such as the Griffin, Megalania, Yutyrannus, Thylacoleo and Rock Elemental, as well as anything that accepts Basic, Simple, Regular, Superior or Exceptional Kibble. It also notes that the egg can be used to tame Basilisks.

Weight and spoilage

It weighs 50, takes a slot to itself with a stack size of 1, and spoils after 8 days (192 hours).