So, I usually get bored or frustrated with mobile games rather quickly, but I've been playing Zoocraft for a few months now, and still love it! So much that when they recently added a VIP area with a fairly low subscription price, I threw my dollars at them right away, and have no regrets! The game doesn't take forever to load, so it's easy to come back to throughout the day as you wait for buildings to finish and babies to grow. Give it a try if you like zoo games!