There are a whole lot of necessary resources in Spartan Wars, which act as your primary “currencies”, so to speak, but on the premium (or “freemium”) side of things are pearls. Pearls can be purchased via the Apple App Store, but if you don’t want to buy anything with real money, there are still ways to get them for free. You won’t get as many as if you bought them, but you’ll get more than enough to buy some nice bonuses.
There are a number of side quests that can get you pearls if you take them up. To find out what they are and how close you are to finishing each of the side quests, click on the icon that looks like a Christmas present, below your resource counting bar. The first reward that you will get is simply for registering with Tap4Fun. This alone will earn you ten pearls.
After that, there are many rewards for how long and how often you play. If you are online for an hour at a time, you will earn 5 pearls. If you log into the game for 3 days in a row, you get 4 pearls. Login for 7 days in a row, and you’ll get a whopping 60 pearls. And even better, if you login for 20 out of 30 days, you’ll earn 100 free pearls.
In addition, if you start an alliance, and then you grow it until you hit 30 members of your alliance, you’ll get a bonus of 10 free pearls.
Now, in addition to all of these things, there are still more ways that you can earn free pearls. You can get them for free as a daily bonus sometimes, although the chances of this happening are fairly rare. You can also earn them if you are strong enough to go deep enough into the misty cave.