[superskierpat]

There is a difference between most games and "whale hunting" games, generally a game will be an interactive experience with a slightly addictive edge to it, but these games are generally between 15$ and 80$ and are a one time buy.

Whale hunters are often free to play games that have an ingame shop where you can buy either cosmetic or game boosts. Examples: Mobas are on the small scale here, they profit from whales but could do without them while facebook games, mmo's or phone games are generally a little more shameless about it.

But nowadays, the line is thinning due to expensive games starting to offer more and more minor downloadable content, which isnt priced high, but can quickly accumulate.