Difficulty curve designed to sucker you into unfruitful in-app purchases

The game starts out nice and the campaigns are fun. However this is a paid app, and for that you don’t get much from the campaigns. You’ll finish them on the first day. Afterwards when you play the dogfight or survival missions, the levels gradually get more difficult for the first 10 levels. After that the difficulty goes up exponentially. At first you think you just need practice, however, after much practice and playing in vain, you will begin to think that maybe you need to start buying upgrades to your plane or buy better planes. After spending more money than what you paid for the game, and still not getting any results, you realize that you’ve been suckered into their scams.

If you’re going to make games for people to enjoy, and make in-app purchaces as options, then at least make it so that people feel like they got something for their purchace. Instead you’ve taken the route to scam people, and leave them feeling regretful for giving you the extra money that you don’t deserve.

Faye Valentine about Sky Gamblers - Storm Raiders, v1.3.0