Upgrades are improvements that you can make to any building. Each upgrade requires that your house be repaired all the way and each upgrade costs Zoo Coins. Upgrades allow you to earn more Zoo Coins and have more visitors.
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Upgrades are improvements that you can make to any building. Each upgrade requires that your house be repaired all the way and each upgrade costs Zoo Coins. Upgrades allow you to earn more Zoo Coins and have more visitors.