Magnetron is a 1988 video game published by Broderbund.

Magnetron is a game in which the player is a Photon fighter pilot whose mission is to destroy walled fortresses in the Magnetron Galaxy.

[1] David M. Wilson for Computer Gaming World gave a positive review to the game and highlighted "Galaxy Editor", a program in which the players "design their own Galaxy and build their own fortress", as its strength.

[1]