Catchy tunes and addictive mechanics. 18 hours over a couple months into the game and i spent $4 to unlock unlimited 'collect all' as it was becoming quite the chore with one daily use between a dozen islands. They got me. I'm at 300 hours now after about 9 months. Yes, I close the game when idle. Now level 40 and fairly advanced with all the islands most common monsters unlocked, as well as a tribe with other active players. Loosing interest somewhat, but have had good experience for $4.

Catchy tunes and addictive mechanics. 18 hours over a couple months into the game and i spent $4 to unlock unlimited 'collect all' as it was becoming quite the chore with one daily use between a dozen islands. They got me. I'm at 300 hours now after about 9 months. Yes, I close the game when idle. Now level 40 and fairly advanced with all the islands most common monsters unlocked, as well as a tribe with other active players. Loosing interest somewhat, but have had good experience for $4.