Coins

Coins are currency that you collect and use for upgrading units, items and skills.

You only earn coins for buildings that are not destroyed during an island defense, so make sure to try and save as many of them as possible.

The number of coins earned depends on the size of the house. A small house will give 1, a medium size house 2 and a large house 3 coins. A church does not provide you with coins, instead it acts as a checkpoint for your campaign.

The Philosopher's Stone gives additional coins after a successful island defense, depending on it's level.