Have a free game so fun and addicting without constant nagging to pay for the game, and you'll eventually find yourself paying for it. Keep up with this business model guys, greed will only backfire. 5/5 freemium game.
At this point, all ya gotta do is listen to the people's concerns and ya'll see money rolling in!
A very nice concept. IF the creator of the game considers updating this game with new content, I'm sure this game will get 1 million plays within 3 days.
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With each passing year - more and more.