ICBM3D - http://www.newbreedsoftware.com/icbm3d/ A 3D version of the apocalyptic missile command for Linux or BeOS.
Missile Command - http://missile.sourceforge.net A Linux port of the game.
Penguin Command - http://user.cs.tu-berlin.de/~karlb/penguin-command/ A Missile Command style shooter for Windows, Linux, or BeOS.
