The Pen in Steal Animal Egg maxes out at Level 19, with room for 25 pets.
The Pen is the fenced area where your pets stand. If it’s full, trying to place another pet brings up “Your Pen is full! Upgrade it for more pets” and “Cannot place pet here!”
The final cash purchase takes the Pen to its upgrade ceiling. This guide covers where to buy it and what you’ll see when it’s complete.


How to upgrade your Pen to Level 19 in Steal Animal Egg
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Read the Pen sign
Look for the Upgrade Pen heading and the Level 18 > Level 19 line.
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Choose the cash purchase
Two buttons sit below the level line. Press the green cash button to upgrade; the purple Robux button displays 2499 as another option.
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Check the result
The sign changes to Level 19 (MAX), both purchase buttons disappear, and a notice says “Pen upgraded! Room for 25 pets now.”

A filled Pen can read 25/25 Active in the Animals panel. Once the Pen sign reads MAX, there are no further Pen levels to buy.




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