Tek Rex Egg

A Tek egg from the Tek Rex

The Tek Rex Egg drops at random from the Tek Rex in ARK: Survival Evolved and ARK: Survival Ascended. Survivors can eat it or turn it into Exceptional Kibble. The ARK Wiki gives its in-game text as "Eat it to gain tremendous nourishment, or use it in recipes, or..." and files it under the Tek eggs.

Exceptional Kibble

The wiki lists Exceptional Kibble for taming creatures such as the Rex, Giganotosaurus, Quetzal, Mosasaurus, Therizinosaur, Spino and Managarmr. Any creature that takes Simple, Basic, Regular or Superior Kibble will take it too.

Incubation and breeding

Two Tek Rex that mate produce an egg that can hatch into a baby Tek Rex. The egg needs between 32 and 34 °C (90 to 93 °F) or it starts losing health, and hatching takes 4h 59m 58.561s. An Egg Incubator set to the best temperature shortens that by up to 20%. A female needs between 18h and 2d before she can lay another egg. Grabbing an egg near wild Tek Rex makes them hostile toward the survivor.

Weight, spoiling and maps

One egg weighs 15 and a stack holds 100, so a full stack weighs 1500. It spoils after 691200 seconds, which is 192 hours or 8 days, and the wiki lists a decompose time of 1800 seconds. Our records place it on Extinction and Astraeos.

The wiki ties the egg to the ARK: ARKaeology event, when it became a permanent part of the game, and gives 280.122 as the version that added it.