Fertilized Rex Egg
Tremendously nourishing by itself, this egg provides exceptional nutritional value in many cooking recipes.
Details
- Category
- Egg
- Games
- ASE + ASA
- Expansion
- Base
Engram
How you unlock it
- Required level
- None
- Engram points
- 0
- How to unlock
- Egg (Creature Drop)
Maps
Found on 8 maps
Related
Video guides: search YouTube for Fertilized Rex Egg guides
Fertilized Rex Egg — Detailed Guide
A Fertilized Rex Egg is laid by a tamed female 
Rex after mating with a tamed male. Kept at the right temperature, it hatches into a baby Rex that inherits stats and mutations from its parents. This is how breeders build the high-level Rexes used for boss fights.
How to get it
Place a tamed male and female Rex close together with mating enabled. After mating, the female lays the egg after a short delay. The parents then wait out a mating cooldown before they can mate again.
Hatching
- Time: a Rex egg takes about 5 hours to hatch at default rates (17,999 seconds).
- Temperature: it only makes progress inside its temperature range.
Air Conditioners or the 
Egg Incubator keep it there. - Raising: the baby needs constant meat while it grows. Imprinting by the same survivor raises its final stats.
Tips
Fertilized eggs do not make kibble; use unfertilized Rex eggs for that. Use our breeding calculator to plan maturation times at your server's rates.