Move from early Forest eggs toward Prehistoric, Cosmic, Cherry Blossom and emerging late-game zones.
Biome progression is the backbone of Steal An Egg. Unlocking a new zone changes the eggs you can target and therefore the pets and income bands available to your base.
Do not rush a portal only because its pets have larger headline values. Stable early income, movement upgrades and a defensible egg route may produce faster practical progression.
Opening progression
Chicken through Brr Brr Patapim form the documented starter sample.
Later zone
T-Rex and Mosasaurus appear in the checked high-income sample.
Late-game zone
Unicorn has a selected $1B/s base record here.
Machine branch
Crane connects this biome to Sakura Incubator progression.
Newer source watch
Access requirements and a complete pet table remain unresolved.
They gate distinct egg pools and progressively stronger pet records.
Check the live portal because a complete current official threshold table was not verified.
Crane belongs to Cherry Blossom in the checked records.
It is reported in current community records, while several details remain source-watch items.
