Nightmod is a tool for making live-moddable games. You can view a game's code while it's running and inject changes by simply hitting "Save". With the powerful Clojure programming language, you'll see your game come to life as you type. Please see the website for more details.
All files that originate from this project are dedicated to the public domain. I would love pull requests, and will assume that they are also dedicated to the public domain.