A guide to upgrading: part one
Upgrading a building can be done once you've reached a certain level requirement which differs per building and building level.
However, when you should upgrade depends on the type of building. Let's begin by taking a look at the Habitat and the Food Farm.
A habitat should only be upgraded once it's full and you're planning on breeding a suitable dragon.
An upgraded habitat allows double the previous amount of dragons to reside there and, as a result, produces more gold.
A level one Food Farm is sufficient if you have a few low level dragons.
Once your Food Farms are struggling to churn out enough food, you'll need to upgrade them to access higher level food.
If most of your dragons are on or over level four and you have more than five dragons, then it's a good time to upgrade your Food Farm.
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