Escape Team - A printable and interactive pen and paper escape game
NullpoMino - NullpoMino is an open-source action puzzle game that works on the Java platform.
Daytrader - A boardgame where Monopoly meets Wolf of Wallstreet
Blockinger - An open source Tetris clone for Android.
Monopoly for Millennials - Forget real estate, you can't afford it anyway
Good Old Tetris - Play Tetris Online. The game that will never get old.