It would be interesting to analyze data of "time/complexity spent on game engines" vs "complexity/interest" of produced games. As a game developer, I expect to

It would be interesting to analyze data of "time/complexity spent on game engines" vs "complexity/interest" of produced games. As a game developer, I expect to see a log curve of diminishing returns of novel games given any simple templating/engine system. In other words, the better you make your cookie cutting machine, the less variance your cookies will have.