Blockinger - An open source Tetris clone for Android.
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
NullpoMino - NullpoMino is an open-source action puzzle game that works on the Java platform.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Tetris Blitz - Race against the clock in a two-minute blitz to clear lines and rack up points before time runs out.
XYplorer - File Manager for Windows