NullpoMino - NullpoMino is an open-source action puzzle game that works on the Java platform.
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Blockinger - An open source Tetris clone for Android.
Clever - syncing between education applications for K-12 schools
Good Old Tetris - Play Tetris Online. The game that will never get old.
Claroline - Claroline is a collaborative eLearning and eWorking platform.