Starz - Breakout variant for Windows in which you don't lose a life when the ball misses the paddle, but rather your score goes down. - http://www.ayretek.com/downloads/freeware/Starz_License_Freeware.htm
LBreakout - Breakout-style arcade game for Linux in the manner of Arkanoid. 30 levels are waiting for you to be cleared. - http://lgames.sourceforge.net/index.php?project=LBreakout
Clankanoid - An Linux Arkanoid clone for four network or local players. - http://insomnia.sourceforge.net/clankanoid/