PlayN is a cross-platform game development toolkit, which can be found here:
http://code.google.com/p/playn/
This project contains sample games and demos for the PlayN toolkit.
Instructions on building and running these samples can be found here:
http://code.google.com/p/playn/wiki/GettingStarted#Running_the_sample_projects
Troubleshooting questions should be posted to the PlayN tag on Stack Overflow:
http://stackoverflow.com/questions/tagged/playn
General discussion should be directed to the PlayN Google Group:
http://groups.google.com/group/playn
Unless otherwise stated, all source files are licensed under the Apache License, Version 2.0:
Copyright 2011 The PlayN Authors
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy
of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations
under the License.