Initially was fun and easy, they had limited ways to advance slowly and by small amounts. Then soon your losing over and over. Now with new required update, they've taken your upgrade stones away every week now, they'll give you 25 gold per stone. Huge Scam, because stones are bought with gems. Now they expect you to buy gems every week so you can buy upgrade stones for your units, which u lose end of every week. If your rich, and want to spend a lot of $, enjoy, I HATE IT NOW. Don't recommend