The number of game developers and studios is more or less fixed for a certain period of time. Since returns on games are so low, game creators have to save mone

The number of game developers and studios is more or less fixed for a certain period of time. Since returns on games are so low, game creators have to save money on development. The easiest way to save money on development is to make a clone. So there will be a higher percentage of clones during periods of oversupply. (Nothing empirically measured but this mechanic makes sense to me).