How to unlock all biomes

Speed figures are targets, not fees to add together

For a numeric Speed requirement, compare the target with your current stat. You do not need to add every earlier target to it. For example, moving from a recorded target of 900 to 8,000 means a numeric increase of 7,100, not a further payment of 8,000.

This arithmetic does not confirm access. Cherry Blossom also has a Crane requirement. The Titan Temple and Angels and Demons sources do not fully agree on whether their Speed figures are recommendations or enforced gates. Check the current entrance and its extra requirements before planning a run.

1 listed starting biome has no recorded Speed requirement. The first nonzero figure in the table is 900 for Lake.

Every gate, and the jump to reach it

Halfway by Speed is not halfway by biome

Half of 20B is 10B. At that point you have 10 of 11 recorded nonzero figures below your stat. Extra conditions can still prevent entry, and halfway by Speed is not necessarily halfway by training time.

The largest ratio between consecutive recorded figures occurs at Cosmic: 41× the previous figure. This ratio alone does not tell you which upgrade to buy; your current training rate and each available upgrade's price matter.

Plan training around the next useful target

Record your current Speed and effective Speed per second. Subtract the current stat from your chosen target, then divide by that rate for continuous training seconds. Recalculate after upgrades or when a temporary boost ends.

For a purchase, compare the additional effective Speed per second with the price. A trail multiplier may improve later treadmill upgrades too, but that does not prove it is the best immediate purchase at every price. The upgrade comparison guide includes a worked example, and the Speed reference lists recorded sources.

Do not treat a fixed multiple of the entry figure as a verified safe carrying speed. Route, egg conditions and guardian behaviour need to be checked in the current game. The Speed planner estimates numeric progress only.

Is unlocking another biome worth it?

That depends on the goal: reaching a new area, obtaining a particular species or improving an earning slot. The highest income listed for a biome does not establish the income you will receive from the next egg.

For income, compare a candidate with the pet it would replace and include the effort needed to obtain it. Hatch probabilities, successful return rates and missing base-income data limit that comparison. Best biome for pets explains how to record a route comparison without turning a roster maximum into a guaranteed return.

Unlocking biomes FAQ

How much Speed do you need to unlock all biomes in Steal An Egg?

20B is the highest recorded Speed figure in this list, for Angels and Demons. Sources differ on whether it is an enforced gate or a recommended minimum. Numeric Speed targets are not cumulative fees, and additional unlock conditions still apply.

What is the hardest biome to unlock?

Angels and Demons has the largest recorded Speed figure. The difference from the previous listed figure is 13B. That measures the numeric gap, not the time or difficulty of completing every access condition.

Do you have to unlock biomes in order?

The recorded Speed figures rise along the listed progression, but that does not prove a required visitation order. Extra requirements can keep an area locked even after you exceed its Speed figure.

Which biomes need more than Speed?

Cherry Blossom: Feed a Crane to the Cherry Blossom Tree to open the region.

How long does unlocking everything take?

Training time depends on your effective Speed gain, future upgrades, interruptions and boosts. Additional biome conditions may take separate time. The Speed calculator gives a conditional estimate at a constant entered rate, not a complete unlock prediction.