Today, I am releasing the alpha version of the real-time strategy programming game CodeCraft. (previously called CodingGame, but I want to avoid confusion with codinggame.com). This is the first public release, so there will be various bugs, rough edges and missing features, but all the core functionality is there now. There will be regular releases from now on to incorporate your feedback.
I put up a tutorial and overview of the API on github, so if you want to give it a try go on and head over there. Currently, CodeCraft can be used with both Scala and Java. Happy coding!