Originally Posted by blackcanopus
I am not a big fan of Vogel, but from a design standpoint what he says is quite true. Grid based structure of the game limits design choices and creativity, which means every successive game with that engine will feel less and less fresh. There are ways to make Grimrock sequels feel fresh. For example Grimrock 2 can take place outdoors, but that's as good as it gets, they can't do much about it's structure.