The systems under the nest.

Mechanics

Understand
the roll.

Mutations, sizes, fusion and treadmill speed are the four systems that turn a clicking game into a plan.

These pages explain the machinery: how the mutation roll multiplies income, what the fusion machine takes and gives, which treadmill upgrades are worth the grind, and how speed thresholds decide whether a raid succeeds. Where the community disagrees on numbers, we show both figures and the date they were measured.

• Mutations: the roll that makes or breaks a hatch.
• Fusion machine rules and the sacrifices worth feeding it.
• Treadmill economics — upgrade order that pays for itself.