Why the bad reviews?

I actually think that this game is excellent! I was literally about to buy it, when last minute it is free. The only reason why I give it 4 stars is because I am highly against in app purchases. Yes, if they are add-ona then fine, let them be, but not a campain mode, like seriously? Im not shelling out any money, I dont care if I got it free or not.

Bobbyfistering about BABEL Rising