Arkane's Harvey Smith spoke to journalists at Gamescom 2012, while also showcasing the latest Dishonored trailer.
"You could attribute it to gamer fatigue. How many games have been released now where you're a soldier, or a space marine, or you're surrounded by elves and wizards, or you're robbing a bank in L.A.?" said Smith.
"I'm still an optimist, and I still have a great time playing games, but the truth is I play two AAA games a year, I probably really enjoy two indie games a year, maybe a couple of mobile games a year, because most stuff is just variations on things we've seen before. If you've been around a while you've seen it over and over and over."
Dishonored launches in the UK in the US on 9th October, Australia on 11th October, and UK on 12th October. The game will be available for PC, Xbox 360 and PlayStation 3.