Thanks! Clojure all the way. Why? Because lisp is awesome :) I haven't made it open source yet, and I'm not entirely sure I will, depends what's best for the project, if making it a paid game on Steam is the way to go... But even if I do I would have to refactor the code somewhat first.
Awesome. I'm a fan of functional programming too :D
I definitely think that there is a possibility to turn this project to a business. I would find it ideal if you can do both, turn it into a business and at the same time open source the code. Maybe you ll find a way. Good luck ;)