When developing a free-to-play game, there's one question every developer faces: how is it going to make money? In-app purchases are one way to go. Ad revenue is another. In many cases, you'll see a mix of both. Phil Hassey's BREAKFINITY is no exception - but it's the way he balances the two that makes it so compelling.

BREAKFINITY is what would happen if Breakout or Arkanoid were an endless runner. Players will clear just enough blocks to see their ball move up to the next stage in a never-ending quest for points. You'll only get one ball, but - and here's where things get interesting - you can buy more with premium currency OR get a free ball by watching a video advertisement. You can get two free balls every game in this manner, but since it caps out at two there's still a sense of competition. Your high score is going to be based on those combined three balls alone, not upsetting the leaderboards (unless you want to buy more with premium currency, of course).