Base management

Break and Steal an Egg Pen & Inventory Guide

A successful carry is wasted if the animal cannot be placed or if the base is filled with weaker animals that no longer support progression. Pen management is part of the main loop, not an end-game cleanup task.

Updated October 8, 2026 - Independent fan guide
Quick answer

What you need to know

Check free pen space before a risky run, upgrade the pen when capacity blocks useful placements and remove or replace weaker animals deliberately. Use Equip Best as a starting point, then verify the placed lineup and income in your own base.

A clean pen-management routine

  1. 01

    Check capacity before leaving

    Make sure the next hatch has somewhere to go before choosing a distant or guarded egg.

  2. 02

    Bank the animal first

    Finish the carry and confirm placement before opening another menu.

  3. 03

    Compare the current lineup

    Use the live income display and rarity labels rather than memory.

  4. 04

    Upgrade or replace

    Buy pen capacity when space is the bottleneck; otherwise remove a confirmed weaker animal.

  5. 05

    Verify Equip Best

    Use the button to speed up selection, then inspect the result before continuing.

Source note

October 8 player footage shows a pen upgrade being required during progression and an Equip Best control in the animal interface. The footage does not establish a permanent slot count.

What to do when the base is full

SituationBest next checkAvoid
A stronger animal is waitingConfirm the weakest placed animalDeleting by appearance alone
Every slot is usefulCheck the current pen-upgrade costStarting another carry with no free space
Income did not changeConfirm the new animal is placedAssuming pickup equals placement
Equip Best looks wrongInspect rarity and live income valuesTreating automation as irreversible

Inventory, merging and the Index

Inventory decisions connect three screens. The pen determines what earns, Merge Pets uses matching animals, and the Index shows whether a hatch adds collection progress.

Do not remove a duplicate needed for a planned merge until you have checked the merge inputs. Do not keep a weak animal only because it is new if the Index has already recorded it and your current goal is income.

FAQ

Frequently asked questions

How do I place more animals in my base?+

Check whether the pen has a free slot. If capacity is the bottleneck, use the current pen upgrade interface and verify the live cost.

What does Equip Best do?+

It helps select stronger available animals, but you should inspect the final placed lineup and current income rather than assuming every automated choice fits your goal.

Should I delete duplicate animals?+

Not automatically. Three matching pets may be useful for merging, so review planned merge inputs before removing duplicates.