Nikki and the Robots is a cute physics platformer. It is in development and mostly open source. Alpha versions are available for public consumption.
Currently the game is LGPL code, CC-BY-SA assets. There will be a for-pay story mode that will contain proprietary assets and data.
A level contest was started (win full version once it's finished + one t-shirt, ends 7. July 2011).
Please test-ride this release [get it here] as hard as you can and make awesome levels for the contest! (Or spread the word if you know somebody who makes awesome levels.) Bugs are kindly asked to go to Launchpad, our IndieDB forum or just this thread .