Users who hate ads must buy paid versions of the game from Headcase Games. But, folks here’s the good news- Play for10 hours and you can avail the paid version for Free.
Users who don’t want to pay will download the free version and play, but they have to reach the goal of 10 hours play time before they can unlock a premium version. Why have ads when you can disable them? Even if these users are not going to avail the $1.99 game, they’ve done their jobs by playing the game and hopefully enough to get hooked. At this point, these users become valuable asset as they help to spread the word around. After that, it’s like a chain reaction – a lot easier to climb the popularity charts and get noticed.
So what do you think –users and developers?


