Totally2d I don't have any released games but I am currently working on three projects: one main, one side project and one in early development. The first one is a doom inspired top down shooter, the side project is just a small shooter and as for the other one, I am yet to decide wether I will be able to do it or if it is too ambitious...
Good luck with your games I totally agree about what you said about knowing the rules before you break them, that's why I usually make a prototype to see if my idea will work before I commit to producing all the art.