成熟過程有三個階段：Baby（0–10%）大約需要556分鐘，這段時間需要持續手動餵食。Juvenile（10–50%）大約需要37小時，現在可以從食槽吃東西了。Adolescent（50–100%）大約需要46小時，繼續從食槽吃東西，幾乎完全長大。

印記加成相當可觀：完全印記的Alpha Rex在乘騎者上時，會獲得30%的額外傷害和傷害抗性。在成熟過程中，你會被要求定期進行依偎、散步或餵食特定的Kibble。

The Alpha Rex reproduces by laying fertilized eggs after mating. Incubation temperature must stay between 32°C and 34°C - use Air Conditioners, Standing Torches, or Dimetrodons to maintain the range. At the correct temperature, the egg hatches in approximately 4 hours and 59 minutes.

Full maturation from baby to adult takes ~3 days and 20 hours (1x rate), progressing over an extremely long period, one of the longest in the game. During the baby phase (0–10%), hand-feed it directly. From 10% onward (juvenile), it can eat from a Feeding Trough.

Offspring inherit parental stats and have a small chance to mutate, gaining +2 levels in a random stat. Use the breeding calculator to plan food requirements, incubation timers, and maturation phases.

The Alpha Rex, a carnivore creature in ARK: Survival Ascended, is well-known across multiple maps. It falls within the Ignore classification.

Stamina sits at 420 base, providing good endurance. With 100% base Melee Damage, the Alpha Rex has respectable melee power. With 17,500 base Health, the Alpha Rex is extraordinarily tanky. Weight capacity starts at 500, giving it excellent carrying capacity.

The Alpha Rex is a wild creature that cannot be tamed through conventional methods. It reproduces by laying eggs, which must be incubated between 32°C and 34°C. A wild Alpha Rex is worth 885 base experience when killed. It can be cloned at a Cloning Chamber for 0.87 Element plus 0.01 Element per level.