FOSS gamedev and creative worlds

Hello.
I'm Polish, and I'm using Google translator, and are probably errors.
So this:
Together with a colleague doing the game, open source, and I have a few questions.
Has anyone modified their version with added monsters, etc..
I would ask about open source code, and immediately the game for inclusion.
I greet all of Poland!

PS: I'll tell someone on MSN Messenger or e-mail: senterse@gmail.com
I would gladly speak with an American.

The code is open-source... just, you should make a patch for this, and it may be ready for review.