So they did it with Major Stryker, Bio Menace, Xenophage, and Stargunner. Now the good folks over at 3D Realms have decided to release Alien Carnage as freeware.

Originally titled Halloween Harry, the aim is to guide the hero through sewers, factories, and office blocks killing zombies with a variety of weapons and rescue hostages before they turn into one of them. Alien Carnage featured digitized music, crisp VGA graphics, and excellent cut-scenes.

Because of 3D Realms' policy of releasing their old titles as freeware every year, we might be seeing Mystic Towers, Hocus Pocus, Realms of Chaos, Death Rally, and much of their other older titles.